CN202159566U

CN202159566U - Network communication transformer

Info

Publication number: CN202159566U
Application number: CN201120218676XU
Authority: CN
Inventors: 杨先进; 张大伟; 张观福
Original assignee: DONGGUAN MENTECH ELECTRONIC Co Ltd
Current assignee: Dongguan Mentech Optical and Magnetic Co Ltd
Priority date: 2011-06-24
Filing date: 2011-06-24
Publication date: 2012-03-07
Anticipated expiration: 2021-06-24

Abstract

The utility model discloses a network communication transformer, which comprises a base, an upper cover, shanks, coils and a circuit board, wherein the shanks are inserted on the base in penetrating mode, one ends of the shanks are arranged outside the base to serve as a pin portion, the base is connected with the upper cover through a structure buckled mutually, the coils are respectively connected with corresponding shanks, and a lightning protection device connected with the coils is arranged on the circuit board. The network communication transformer has the advantages of being resistant to lightning stroke, electrical surge and electromagnetic pulse and electrostatic protection.

Description

A kind of network communication transformer

Technical field

The utility model relates to network transformer, is specifically related to a kind of network communication transformer.

Background technology

Existing network communication transformer is widely used in the high-performance digital switch; The SDH/ATM transmission equipment; ISDN, ADSL, VDSL, POE power receiving equipment integrated service digital device; FILT optical fiber loop equipment; On the equipment such as Ethernet switch.But existing network communication transformer does not possess the function that anti-lightning surge, electromagnetic pulse and electrostatic defending are arranged.

The utility model content

The problem that the utility model need solve provides a kind of network communication transformer with anti-lightning surge, electromagnetic pulse and antistatic protection function.

To achieve these goals, the utility model is designed a kind of network communication transformer, comprises base, loam cake, around pin, coil and circuit board; Describedly be inserted on the base around wearing; End around pin places base exterior as the PIN foot section, and base is connected through the structure that fastens each other with loam cake, and coil is connected around pin respectively with accordingly; The lightning protection device is set on the described circuit board, and described lightning protection device is connected with coil.

The utility model network communication transformer adopts the covers combined structure design, and product reliability is high, is widely used in the network communication switching equipment, supports the T1/E1 transmission rate, and electrical parameter and performance meet G.703T1/E1 international standard of CCITT&ITU.Except the transmission characteristic that satisfies traditional T1/E1; The utility model is through being connected the lightning protection device with coil; Thereby make network communication transformer also increase static, electromagnetic pulse and lightning surge defencive function; The lightning protection device meets standards such as IEC61000-4-2, IEC61000-4-4, IEC-61000-4-5, has good anti-thunderbolt, surge protection and ESD safeguard function, effectively the work safety of protecting network communication transformer.

Description of drawings:

Fig. 1 is the utility model network communication transformer perspective view;

Fig. 2 is the decomposition texture sketch map of the utility model network communication transformer;

Fig. 3 is the circuit theory diagrams of the utility model network communication transformer.

Embodiment

For the ease of those skilled in the art's understanding, will combine specific embodiment and accompanying drawing that the structural principle of the utility model is done further to describe in detail below:

Like Fig. 1, shown in Figure 2; Design a kind of network communication transformer; It comprises base 1, loam cake 2, around pin 3, coil 4 and circuit board, describedly intert on base 1 around pin 3, place base 1 outside as the PIN foot section around an end of pin 3; Base 1 is connected through the structure that fastens each other with loam cake 2, and coil 4 is connected around pin 3 respectively with accordingly.

As shown in Figure 3, coil T1, T2, T3, T4, T5, T6, T7, T8 draw terminals 1～40 respectively.

The utility model network communication transformer can be realized signal transmission, impedance matching, high pressure isolation, thunderbolt, electromagnetic pulse and electrostatic defending.

The side signal transmission face of the utility model network communication transformer; Support T1 (1.544Mbps)/E1 (2.048Mbps) transmission rate; Electrical parameter and performance meet G.703T1/E1 international standard of CCITT&ITU, and it utilizes the electromagnetic induction principle of transformer, differential signal are coupled to the opposite side of circuit; And by means of the conversion of the different number of turns than the realization varying level, each passage can be defined as transmission or receiving function according to different mainboard chips.

The impedance matching aspect of the utility model network communication transformer realizes the coupling of system terminal characteristic impedance and load impedance, the effectively return loss of control circuit through the different number of turns of primary and secondary than (1: 2.42).

The high voltage isolation aspect of the utility model network communication transformer; The magnet assembly design insulation isolation voltage of network communication transformer satisfies the requirement of UL60950, and the varying level of heterogeneous networks equipment and front end circuit and IC chip chamber made die terminals and external isolation during the isolation cable connected; Antijamming capability strengthens greatly; And chip increased insulation blocking, and press through netting twine transmission damage equipment to prevent different electric, can play the shock resistance protective effect to customer equipment thus.

The anti-lightning surge of the utility model network communication transformer, electromagnetic pulse and antistatic protection function aspect; The lightning protection device of power 500W when network communication transformer is built-in with news, this lightning protection device meets IEC61000-4-2 (ESD) 15KV (Air) 8Kv (Contact); IEC61000-4-4 (EFT) (40Atp=5/50ns); IEC-61000-4-5 (Surge/Lightning) 24A (tp=8/20ns) standard is damaged terminal equipment to prevent instantaneous high pulse voltage through the front end of line transmission; In addition, communication device unites two into one with the protection device on original encapsulation basis, when realizing same function, has saved client's mainboard space and production and processing cost greatly.

Foregoing is merely the preferred embodiment of the utility model, is not the embodiment that is used to limit the utility model, and those skilled in the art are according to the design of the utility model, and appropriate adaptation of having done or modification all should be within the protection ranges of the utility model.

Claims

1. network communication transformer; Comprise base (1), loam cake (2), around pin (3), coil (4) and circuit board, describedly intert on base (1) around pin (3), place base (1) outside around an end of pin (3) as the PIN foot section; Base (1) is connected through the structure that fastens each other with loam cake (2); Coil (4) is connected around pin (3) respectively with accordingly, it is characterized in that: the lightning protection device is set on the described circuit board, and described lightning protection device is connected with coil (4).