CN216119891U

CN216119891U - Annular winding network transformer for inhibiting common mode effect

Info

Publication number: CN216119891U
Application number: CN202122651200.1U
Authority: CN
Inventors: 陈巨亮; 任艳平; 蔡闯; 谢华伟
Original assignee: Zhongshan Zhanhui Electronic Equipments Co ltd
Current assignee: Zhongshan Zhanhui Electronic Equipments Co ltd
Priority date: 2021-11-02
Filing date: 2021-11-02
Publication date: 2022-03-22
Anticipated expiration: 2031-11-02

Abstract

The utility model discloses a common mode effect suppression annular winding network transformer, which belongs to the technical field of network electronic equipment and comprises a choke coil, a transformation coil, a first enameled wire, a second enameled wire, a third enameled wire and a fourth enameled wire, wherein the transformation element and a differential mode signal element share the same choke coil, and the common mode effect is suppressed by the choke coil on the transformation element and the differential mode signal element, so that the number of the choke coils is saved, the equipment cost is reduced, and the product volume is reduced.

Description

Annular winding network transformer for inhibiting common mode effect

Technical Field

The utility model belongs to the technical field of network electronic equipment, and particularly relates to a common-mode effect suppression annular winding network transformer.

Background

The router is connected with an external network cable and an internal electronic element through a network transformer to reduce electromagnetic interference. The network transformer realizes isolation coupling, filtering and protection functions through the transformation coil and the choke coil, the traditional network transformer is a transformation coil leading-out terminal connected choke coil, common-mode noise is mixed in differential-mode signals of partial electronic elements in the existing router, the choke coil needs to be connected to remove the common-mode noise and inhibit the common-mode effect, the choke coil used by the electronic elements needs to be independently arranged, a large amount of PCB (printed circuit board) area is occupied, the number of components with the same function is large, and the overall cost of the equipment is increased.

SUMMERY OF THE UTILITY MODEL

In order to overcome the problems in the background art, the utility model provides a device, which omits the components with the same function, reduces the equipment cost and reduces the product volume by sharing a choke coil.

In order to achieve the purpose, the utility model is realized by the following technical scheme: the transformer coil comprises a choke coil, a transformer coil, a first enameled wire, a second enameled wire, a third enameled wire and a fourth enameled wire, wherein the inlet wire end of the first enameled wire and the inlet wire end of the second enameled wire are twisted into a twisted wire, and the twisted wire is uniformly wound on the transformer coil at intervals; the outlet ends of the stranded wire are a first enameled wire lead and a second enameled wire lead, the first enameled wire lead, the second enameled wire lead, the third enameled wire lead and the fourth enameled wire lead are stranded into a composite stranded wire, the composite stranded wire is uniformly wound on the choke coil, the first enameled wire outlet end and the second enameled wire outlet end are led out from a first wire brake at the top of the composite stranded wire, the third enameled wire outlet end and the fourth enameled wire outlet end are led out from a second wire brake at the top of the composite stranded wire, and the first wire brake and the second wire brake are adjacent.

Furthermore, the first enameled wire lead and the second enameled wire lead are stranded after being led out.

Furthermore, the outlet ends of the first enameled wire and the second enameled wire are twisted after being led out; and the third outlet end of the enameled wire and the fourth outlet end of the enameled wire are stranded after being led out.

The utility model has the beneficial effects that: the transformation element and the differential mode signal element share the same choke coil, and the common mode effect is restrained by the choke coil on the transformation element and the differential mode signal element, so that the number of the choke coils is saved, the equipment cost is reduced, and the product volume is reduced.

Drawings

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

in the figure, 1-a choke coil, 2-a transformer coil, 31-a first enameled wire leading-in end, 32-a first enameled wire leading-out end, 33-a first enameled wire leading-out end, 41-a second enameled wire leading-in end, 42-a second enameled wire leading-out end, 43-a second enameled wire leading-out end, 51-a third enameled wire leading-in end, 52-a third enameled wire leading-out end, 61-a fourth enameled wire leading-in end and 62-a fourth enameled wire leading-out end.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings to facilitate understanding of the skilled person.

As shown in fig. 1, the ring-shaped winding network transformer for suppressing the common mode effect includes a choke coil 1, a transformer coil 2, a first enameled wire, a second enameled wire, a third enameled wire and a fourth enameled wire, wherein the colors of the enameled wires are different, so that the later-stage wiring can be distinguished. The first inlet wire end 31 of the enameled wire and the second inlet wire end 41 of the enameled wire are twisted into a twisted wire, the twisted wire is uniformly wound on the transformer coil 2 at intervals, the outlet wire ends of the twisted wire are a first inlet wire 32 of the enameled wire and a second inlet wire 42 of the enameled wire, after winding is completed, the first inlet wire end 31 of the enameled wire and the second inlet wire end 41 of the enameled wire are primary of the transformer coil 2, and the first inlet wire 32 of the enameled wire and the second inlet wire 42 of the enameled wire are secondary of the transformer coil 2. According to the requirement of users for voltage transformation, the voltage transformation proportion is adjusted according to the number of the stranded wire winding brakes.

The outlet ends of the stranded wire are a first enameled wire lead wire 32 and a second enameled wire lead wire 42, the first enameled wire lead wire 32, the second enameled wire lead wire 42, the third enameled wire lead wire 51 and the fourth enameled wire lead wire 61 are twisted into a composite stranded wire, the composite stranded wire is uniformly wound on the choke coil, and the number of the winding brake of the composite stranded wire is set according to the frequency impedance required by a customer. The choke coil is used for inhibiting the common mode effect on the transformation element and the differential mode signal element, so that the number of the choke coils is saved, the equipment cost is reduced, and the product volume is reduced. The first enameled wire outlet end 33 and the second enameled wire outlet end 34 are led out from the first compound stranded wire top wire brake, the third enameled wire outlet end 52 and the fourth enameled wire outlet end 62 are led out from the second compound stranded wire top wire brake, and the first wire brake and the second wire brake are adjacent. The choke coil 1 is respectively led out from different line brakes, the winding is firm, the number of the brakes of the choke coil 1 cannot be changed in the installation and transportation process, the impedance of the network transformer is fixed, the stability of a product is improved, and the normal work of the router is ensured.

Further, the first enameled wire lead 32 and the second enameled wire lead 42 are twisted after being led out. The stranded structure guarantees that enameled wire winding is firm, avoids 2 coil changes of vary voltage coil, influences the vary voltage proportion.

Furthermore, the first outlet end 33 of the enameled wire and the second outlet end 43 of the enameled wire are twisted after being led out; and the enameled wire three outgoing line end 52 and the enameled wire four outgoing line end 62 are twisted after outgoing. The enameled wire has small diameter, the single wire outlet is easy to bend and break, and the enameled wires are stably connected after the wire outlet ends are twisted, so that the choking coil is tightly wound.

Finally, it is noted that the above preferred embodiments are merely illustrative of the technical solutions of the present invention and not restrictive, and although the present invention has been described in detail with reference to the above preferred embodiments, it should be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the present invention.

Claims

1. A ring-shaped winding network transformer for inhibiting common mode effect is characterized in that: the transformer coil comprises a choke coil, a transformer coil, a first enameled wire, a second enameled wire, a third enameled wire and a fourth enameled wire, wherein the inlet wire end of the first enameled wire and the inlet wire end of the second enameled wire are twisted into a twisted wire, and the twisted wire is uniformly wound on the transformer coil at intervals; the outlet ends of the stranded wire are a first enameled wire lead and a second enameled wire lead, the first enameled wire lead, the second enameled wire lead, the third enameled wire lead and the fourth enameled wire lead are stranded into a composite stranded wire, the composite stranded wire is uniformly wound on the choke coil, the first enameled wire outlet end and the second enameled wire outlet end are led out from a first wire brake at the top of the composite stranded wire, the third enameled wire outlet end and the fourth enameled wire outlet end are led out from a second wire brake at the top of the composite stranded wire, and the first wire brake and the second wire brake are adjacent.

2. The toroidal wound network transformer of claim 1, wherein: and the first enameled wire lead and the second enameled wire lead are stranded after being led out.

3. The toroidal wound network transformer of claim 1 or 2, wherein: the first enameled wire outlet end and the second enameled wire outlet end are twisted after being led out; and the third outlet end of the enameled wire and the fourth outlet end of the enameled wire are stranded after being led out.