CN220155312U

CN220155312U - SMD patch type nanocrystalline common mode inductance

Info

Publication number: CN220155312U
Application number: CN202321517257.5U
Authority: CN
Inventors: 王水庆; 王仲芬; 王振海
Original assignee: Zhuhai Xingci Technology Co ltd
Current assignee: Zhuhai Xingci Technology Co ltd
Priority date: 2023-06-14
Filing date: 2023-06-14
Publication date: 2023-12-08
Anticipated expiration: 2033-06-14

Abstract

The utility model discloses an SMD patch type nanocrystalline common mode inductor which saves the occupation space of the common mode inductor and improves the window utilization rate. The utility model is applied to the technical field of common mode inductance.

Description

SMD patch type nanocrystalline common mode inductance

Technical Field

The utility model relates to the technical field of common mode inductances, in particular to an SMD patch type nanocrystalline common mode inductance.

Background

The traditional common mode inductor is characterized in that a round copper wire is used as a winding on a magnetic core, a common magnetic core is ring-shaped, the copper wire is round copper wire, so that a lead pin of the copper wire is round, the copper wire is generally suitable for being directly installed on a PCB (printed circuit board), the installation mode occupies a relatively large space, the PCB is generally multi-layer in a power supply with high power density, elements are required to be welded and installed in an SMD (surface mounted device) mode, and the common direct-insertion common mode inductor is not applicable.

The existing common-mode inductor is not provided with a winding formed by winding flat copper wires, and the inductor is partially embedded into the base, so that occupied space is saved, and the utilization rate of a window is improved.

Disclosure of Invention

The utility model mainly aims to provide the SMD patch type nanocrystalline common mode inductor which saves the occupation space of the common mode inductor and improves the window utilization rate, and can effectively solve the problems in the background technology.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides a SMD paster type nanocrystalline common mode inductance, includes the base, the shell is installed on the upper portion of base, the shell comprises upper cover and lower cover, the upper cover with the lower cover is the joint, the internally mounted of shell has the magnetic core, the outside symmetry winding of shell has two sets of windings, the both ends of winding are provided with the pin, a plurality of arc mounting grooves have been seted up on the upper portion of base, the installation position has been seted up on the upper portion of base, the output of winding with the installation phase adaptation.

Preferably, the outer part of the housing is cylindrical where the winding is wound, so that the winding is wound outside the housing.

Optimally, the upper part of the lower cover is fixedly connected with a limiting block, the lower part of the upper cover is provided with a limiting groove, and the limiting block is matched with the limiting groove, so that the lower cover and the upper cover can be connected together.

Preferably, a baffle is fixedly connected to the upper portion of the base, so that two groups of windings outside the housing are separated by the baffle.

Optimally, the winding is formed by winding flat copper wires, so that the utilization rate of a window is improved, and the volume of the common-mode inductor is reduced.

Optimally, the magnetic core is a nanocrystalline magnetic core, so that a larger inductance is obtained with fewer turns.

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

according to the utility model, through the arrangement of the winding, the shell, the base, the magnetic core and the arc-shaped mounting groove, the magnetic core is mounted in the shell, the winding is wound outside the shell, and the assembled common-mode inductor is mounted in the arc-shaped mounting groove at the upper part of the base, so that the volume of the common-mode inductor is reduced, the utilization rate of a window is improved, pins at two ends of the winding penetrate through the mounting positions, and the pins are bent at the bottom, and the SMD mounting mode of the pins is realized.

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.

FIG. 1 is a schematic view of a part of the structure of the present utility model;

FIG. 2 is a schematic view of a partial exploded construction of the present utility model;

FIG. 3 is a schematic view of the structure of the housing of the present utility model;

FIG. 4 is a schematic view of the structure of the base of the present utility model;

fig. 5 is a schematic structural view of the upper cover of the present utility model.

In the figure: 1. a base; 2. a housing; 3. an upper cover; 4. a lower cover; 5. a magnetic core; 6. a winding; 7. a limiting block; 8. a limit groove; 9. a baffle; 10. an arc-shaped mounting groove; 11. a mounting position; 12. pins.

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.

As shown in fig. 1-5, an SMD patch type nanocrystalline common mode inductance comprises a base 1, a housing 2 is installed on the upper portion of the base 1, the housing 2 is composed of an upper cover 3 and a lower cover 4, the upper cover 3 and the lower cover 4 are in clamping connection, a magnetic core 5 is installed in the housing 2, two groups of windings 6 are symmetrically wound on the outer portion of the housing 2, pins 12 are arranged at two ends of the windings 6, a plurality of arc-shaped mounting grooves 10 are formed in the upper portion of the base 1, a mounting position 11 is formed in the upper portion of the base 1, and the output end of the windings 6 is matched with the mounting position 11.

The outside of shell 2 is twined winding 6 department is cylindricly, when using, will winding 6 twines in the outside of shell 2, through will the both sides of shell 2 set up cylindricly, make winding 6 can be better twine on shell 2, and make winding 6 laminating more shell 2.

The upper portion fixedly connected with stopper 7 of lower cover 4, limit groove 8 has been seted up to the lower part of upper cover 3, stopper 7 with limit groove 8 looks adaptation, when using, will magnetic core 5 is put the inside of lower cover 4, the rethread lower cover 4 with mutually support between the upper cover 3, be convenient for make upper cover 3 with lower cover 4 links together, and makes magnetic core 5 fixes the inside of shell 2.

A baffle 9 is fixedly connected to the upper portion of the base 1, and the winding 6 wound on the housing 2 can be separated by the baffle 9 by arranging the baffle 9.

The winding 6 is formed by winding a flat copper wire, the cylindrical winding 6 is changed into a flat copper wire, and the winding 6 is more attached when the winding 6 is wound on the surface of the shell 2, so that the utilization rate of a window is improved, and the volume of the common-mode inductor is reduced.

The magnetic core 5 is a nanocrystalline magnetic core, and the nanocrystalline magnetic core has high magnetic permeability, so that a larger inductance value can be obtained with fewer turns.

When the device is specifically used, during installation, the magnetic core 5 is adhered to the inside of the lower cover 4 through a silicon adhesive, the limiting block 7 at the upper part of the lower cover 4 is placed in the limiting groove 8 of the upper cover 3, so that the magnetic core 5 is installed in the casing 2, two groups of windings 6 are wound on cylindrical positions at two sides of the casing 2 in opposite directions, and due to the fact that the windings 6 are made of flat copper wires, when the windings 6 are wound on the casing 2, the device can better utilize space, improve the utilization rate of windows, reduce the volume of common mode inductance, pass pins 12 at two ends of the windings 6 through installation positions 11 at the upper part of the base 1, enable the assembled windings 6 to be installed in the arc-shaped installation groove 10, bend the pins 12 at the bottom of the base 1, thereby completing the installation of a patch, and the two groups of windings 6 are separated by the baffle 9, and the two groups of windings 6 have better voltage-resistant characteristics.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The SMD patch type nanocrystalline common mode inductor comprises a base (1), and is characterized in that: the utility model discloses a motor, including base (1), shell (2) are installed on the upper portion of base (1), shell (2) are constituteed by upper cover (3) and lower cover (4), upper cover (3) with lower cover (4) are the joint, the internally mounted of shell (2) has magnetic core (5), the outside symmetry winding of shell (2) has two sets of windings (6), the both ends of winding (6) are provided with pin (12), a plurality of arc mounting groove (10) have been seted up on the upper portion of base (1), installation position (11) have been seted up on the upper portion of base (1), the output of winding (6) with installation position (11) looks adaptation.

2. The SMD patch type nanocrystalline common mode inductance of claim 1, wherein: the outer part of the shell (2) is wound with the winding (6) to form a cylinder.

3. The SMD patch type nanocrystalline common mode inductance of claim 1, wherein: the upper portion fixedly connected with stopper (7) of lower cover (4), spacing groove (8) have been seted up to the lower part of upper cover (3), stopper (7) with spacing groove (8) looks adaptation.

4. The SMD patch type nanocrystalline common mode inductance of claim 1, wherein: the upper part of the base (1) is fixedly connected with a baffle (9).

5. The SMD patch type nanocrystalline common mode inductance of claim 1, wherein: the winding (6) is formed by winding flat copper wires.

6. The SMD patch type nanocrystalline common mode inductance of claim 1, wherein: the magnetic core (5) is a nanocrystalline magnetic core.