TWI565160B - Network connector - Google Patents

Description

Network electrical connector

The present invention relates to a network electrical connector, and more particularly to a surge protection integrated circuit component in a network electrical connector.

For the prior art related to the present invention, reference is made to the mainland patent of the publication number CN102290681. The publication patent discloses a network electrical connector comprising a physical side and a cable side that are input and output, a plurality of signal paths connected between the two sides, and a surge protection integrated circuit, the signal path including a transformer a common mode suppressor in series with a transformer, the transformer including a first magnetic coil and a second magnetic coil coupled to each other, the first magnetic coil being connected to a cable side, the second magnetic coil and a common mode suppressor Connected, a surge protection integrated circuit component is connected to both ends of the first magnetic coil of the one signal channel and the first magnetic ends of the other signal path.

However, such a design makes the surge protection integrated circuit component close to the cable end. When the high voltage is entered into the cable end, the primary resistance becomes a surge protection integrated circuit component, so the required surge protection integrated circuit component is more strict. If the surge protects the integrated circuit component close to the physical side, because the source is far from the high voltage source, the startup speed becomes slower, sometimes causing the high voltage protection to fail.

Therefore, it is necessary to design a new network electrical connector to solve the above technical problems.

The technical problem to be solved by the present invention is to provide a network electrical connector that changes the position of the surge protection integrated circuit component.

In order to solve the above technical problem, the technical solution of the present invention is: a network electrical connector comprising a first side and a second side, which are input and output, and a capacitor connected to the ground, connected between the two sides. a plurality of signal paths and surge protection integrated circuit components, the signal path comprising a transformer, a common mode suppressor in series with the transformer, the transformer including a first magnetic coil and a second magnetic coil coupled to each other, the first magnetic coil Connected to the first side, the second magnetic coil is coupled to the common mode suppressor, and the surge protection integrated circuit component is coupled between the second magnetic coil and the common mode suppressor.

Compared with the prior art, the surge protection integrated circuit component of the network electrical connector of the present invention is disposed between the transformer and the common mode suppressor. However, such a design reduces the specification requirements of the surge protection integrated circuit component, thereby reducing the specification. The cost of the connector.

The first figure is a perspective view of a network electrical connector in accordance with the present invention.

The second drawing is a circuit diagram in accordance with the first embodiment of the present invention.

The third diagram is a circuit diagram in accordance with a second embodiment of the present invention.

Referring to the first figure, a network electrical connector 100, the circuitry of which is in accordance with the present invention. Referring to the second figure, a circuit diagram of a first embodiment of the present invention is shown as a network interface circuit, which can be used for RJ45 electrical connectors of four signal channels, and provides common mode signal overvoltage protection for each signal channel. The circuit has a first side (physical side) and a second side (cable side) which are mutually input and output, and is connected to the first signal channel 21, the second signal channel 22, and the third signal channel between the two sides. 23. A fourth signal path 24, each of which includes a transformer 30 and a common mode suppressor 40 in series with the transformer 30. The transformer 30 further includes a first magnetic coil 31 and a second magnetic coil 32 coupled to each other, the two ends of the first magnetic coil 31 being connected to the first side (physical side), and the two ends of the second magnetic coil 32 The other side of the common mode suppressor 40 is connected to the second side (cable side). The first magnetic coil 31 of each signal channel includes a first center tap 310, and the second magnetic coil 32 includes a second center tap 320, the first center of the four signal channels (21, 22, 23, 24) The taps 310 are connected in parallel and connected to the first side (physical side). Each of the signal channels further includes an inductor 50. The second center tap 320 of the second magnetic coil 32 of each signal channel is connected in series with the inductor 50 of the same channel, connected in series and then connected in parallel, and finally connected in series with a capacitor 60. . The network electrical connector 100 further includes two surge protection integrated circuit components 70 that function as lightning protection. The surge protection integrated circuit component 70 is provided with two sides connected, two on each side. a connecting end, the connecting end of the one side is connected between the second magnetic coil 32 of the first signal path 21 and the common mode suppressor 40, and the connecting end of the other side is connected to the second end of the second signal path 22. Between the magnetic coil 32 and the common mode suppressor 40. A surge protection integrated circuit component 70 is connected between the third signal path 23 and the fourth signal path 24 in the same connection manner. The common mode suppressor 40 may be a three-wire CMC or a two-wire CMC. Therefore, when the high voltage is struck from the cable end, the primary resistance first passes through the common mode suppressor 40 to generate energy attenuation, and the secondary resistance passes through the surge protection integrated circuit component 70, thus reducing the specification of the surge protection integrated circuit component 70. At the same time, the cost of the entire network electrical connector is also reduced, but it also protects the physical side of the motherboard.

Referring to the third embodiment, a circuit diagram of a second embodiment of the present invention, the circuit diagram of the second embodiment is substantially the same as that of the first embodiment, the only difference being that the transformer 30' and the common mode suppressor 40' are interchanged. Only briefly described below, the transformer 30' includes a first magnetic coil 31' and a second magnetic coil 32' coupled to each other, the first magnetic coil 31' being connected to the first side (cable side) The second magnetic coil 32' is connected to the common mode suppressor 40', and the common mode suppressor 40' is connected to the second side (physical side). The first magnetic coil 31' is provided with a first center tap 310', and the second magnetic coil 32' is provided with a second center tap 320', and the first center tap 310' of each signal channel is connected in series with the inductance 50' of the same channel. Parallel to ground in series with capacitor 60'. Each of the second center taps 320' is connected in parallel to the second side (physical side). One side connection end of the surge protection integrated circuit component 70' is connected between the second magnetic coil 32' of the first signal path 21' and the common mode suppressor 40', and the connection end of the other side is connected to Between the second magnetic coil 32' of the second signal path 22' and the common mode suppressor 40'. The same surge protection integrated circuit component 70' is connected in the same manner between the third signal path 23' and the fourth signal path 24'.

The above are only the two embodiments of the present invention, and are not all or the only embodiments. Any equivalent changes taken by those skilled in the art by reading the description of the present invention are the rights of the present invention. The requirements are covered.

100‧‧‧Network electrical connector

10‧‧‧ interface

21, 21’ ‧ ‧ first signal channel

22,22’‧‧‧second signal channel

23,23’‧‧‧ third signal channel

24,24’‧‧‧fourth signal channel

30,30’‧‧‧Transformers

31,31’‧‧‧First magnetic coil

310,310’‧‧‧First Center Tap

32,32’‧‧‧Second magnetic coil

320,320’‧‧‧second center tap

40,40’‧‧‧Common mode suppressor

50,50’‧‧‧Inductance

60,60'‧‧‧ Capacitance

70,70’‧‧‧ Surge protection integrated circuit components

no

21‧‧‧First signal channel

22‧‧‧second signal channel

23‧‧‧ third signal channel

24‧‧‧fourth signal channel

30‧‧‧Transformers

31‧‧‧First magnetic coil

310‧‧‧First Center Tap

32‧‧‧Second magnetic coil

320‧‧‧Second center tap

40‧‧‧Common mode suppressor

50‧‧‧Inductance

60‧‧‧ Capacitance

70‧‧‧ Surge protection integrated circuit components

Claims (10)

A network electrical connector includes:
First side
a second side, the first side and the second side are input and output of each other;
a capacitor, the capacitor being grounded;
a plurality of signal channels connected between the first side and the second side;
Surge protection integrated circuit components;
The signal path includes a transformer, a common mode suppressor connected in series with the transformer, the transformer including a first magnetic coil and a second magnetic coil coupled to each other, the first magnetic coil being connected to the first side, and the second magnetic coil The common mode suppressor is connected, wherein the surge protection integrated circuit component is connected in parallel between the second magnetic coil and the common mode suppressor. The network electrical connector of claim 1, wherein the network electrical connector comprises four signal channels, each of the two signal channels sharing a surge protection integrated circuit component, the surge protection The integrated circuit component includes a first end coupled to a signal path and a second end coupled to the other signal path. The network electrical connector of claim 1, wherein the first side of the input and output is a physical side, and the second side is a cable side. The network electrical connector of claim 3, wherein the first and second magnetic coils each comprise a center tap, and the center taps of the first magnetic coils of the plurality of signal channels are connected in parallel to the physical side. . The network electrical connector of claim 4, wherein the network electrical connector further comprises a plurality of inductors, wherein a center tap of the second magnetic coil of the plurality of signal channels is connected in series with the corresponding inductor and then connected in parallel In series with the capacitor. The network electrical connector of claim 1, wherein the first side of the input and output is a cable side, and the second side is a physical side. The network electrical connector of claim 6, wherein the first and second magnetic coils each comprise a center tap, and the center taps of the second magnetic coils of the plurality of signal channels are connected in parallel to the physical side. . The network electrical connector of claim 7, wherein the network electrical connector further comprises a plurality of inductors, wherein the center taps of the first magnetic coils of the plurality of signal channels are connected in series with the corresponding inductors and then connected in parallel In series with the capacitor. The network electrical connector of claim 1, wherein the common mode suppressor is a three-wire type. The network electrical connector of claim 1, wherein the common mode suppressor is a two-wire type.