CN203521789U - Electric connector - Google Patents
Electric connector Download PDFInfo
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- CN203521789U CN203521789U CN201320574422.0U CN201320574422U CN203521789U CN 203521789 U CN203521789 U CN 203521789U CN 201320574422 U CN201320574422 U CN 201320574422U CN 203521789 U CN203521789 U CN 203521789U
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- magnetic coil
- coil
- electric connector
- common mode
- tvs pipe
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Abstract
An electric connector is provided with a plurality of signal channels used for network signal transmission; each signal channel comprises an isolation transformer and a paster common mode choke coil; the isolation transformer comprises a first and second magnetic coils mutually coupled; the paster common mode choke coil comprises a third and fourth magnetic coils mutually coupled; two ends of the second magnetic coil are respectively connected with one ends of a third and fourth coils; the first magnetic coil in each signal channel is provided with a center tap; each signal channel also comprises a TVS pipe arranged between the isolation transformer and the paster common mode choke coil; one end of the TVS pipe is connected between the third coil and the second magnetic coil, and the other end of the TVS pipe is connected between the fourth coil and the second magnetic coil; the center taps of the first magnetic coil of each signal channel are connected in parallel and then connected with a first protection circuit.
Description
[technical field]
The utility model is relevant a kind of electric connector, relates in particular to a kind of signal protection structure of electric connector.
[background technology]
On October 5th, 2010, the United States Patent (USP) of bulletin disclosed a kind of magnetic interfaces circuit No. US7808751B2, described magnetic interfaces circuit has physical side and cable-side, be connected in the some signalling channels between these both sides, each signalling channel includes isolating transformer and common mode choke, between described isolating transformer and described common mode choke, be provided with voltage clamping device, for common mode protection is provided.Described isolating transformer and described common mode choke all need artificial coiling, and processing procedure is more complicated, and cost is higher, and also have differential mode surge during described magnetic interfaces circuit working, and differential mode surge can damage the common mode choke in circuit.
Therefore, need to provide a kind of improved electric connector.
[utility model content]
Technical problem to be solved in the utility model is to provide a kind of electric connector with signal protection structure; while making electric connector work; common mode surge and differential mode surge in magnetic interfaces circuit can not damage the element in circuit as far as possible; meanwhile, the processing procedure that makes electric connector is simple as far as possible, cost is cheap as far as possible.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of electric connector, it forms network connecting circuit, described network connecting circuit has the first side and second side of input and output each other, be connected in the some signalling channels between these both sides, each signalling channel includes isolating transformer and SMD common mode choke, isolating transformer comprises first and second magnetic coil intercoupling, the two ends of the first magnetic coil are connected in the first side, SMD common mode choke comprises the 3rd and the 4th magnetic coil intercoupling, the two ends of the second magnetic coil are connected to the 3rd, one end of the 4th coil, the 3rd, the other end of the 4th coil is connected in the second side, wherein the first magnetic coil of each signalling channel all has a centre cap, described each signalling channel also comprises the TVS pipe of being located between isolating transformer and SMD common mode choke, one end of described TVS pipe is connected between described tertiary coil and the second magnetic coil, the other end of described TVS pipe is connected between described the 4th coil and the second magnetic coil.
With respect to prior art, described common mode choke is generally winding-type chip inductor or lamination-type chip inductor, described winding-type chip inductor adopts automatic winding processing procedure, can promote like this production capacity and guarantee yield, and between isolating transformer and common mode choke, be provided with TVS pipe, the damage of differential mode surge to common mode choke while reducing as far as possible electric connector work.
Other specific features of the present utility model are as follows:
After the centre cap parallel connection of described each signalling channel the first magnetic coil, be connected to one first protective circuit.
Described the first protective circuit comprises the switching mode common mode protective element of one first electric capacity and the one and first Capacitance parallel connection.
The first capacitance is 1000 pico farads.
The second magnetic coil of described each signalling channel all has centre cap, after each centre cap is connected in parallel, then two to four second electric capacity that are connected in parallel of connecting, be then connected in the second side joint ground.
The second capacitance is 470 pico farads.
The second capacitance is 0.1 microfarad.
[accompanying drawing explanation]
Fig. 1 is the stereogram that meets electric connector of the present utility model.
Fig. 2 is to Figure 4 shows that three kinds of different first interface circuit diagrams of electric connector.
[main element symbol description]
The second interface 102
The first side 21
The second side 22
The 3rd signalling channel 33
The 4th signalling channel 34
Isolating transformer 41
The first magnetic coil 411
The second magnetic coil 412
The first centre cap 413
The second centre cap 414
SMD common mode choke 42
The 3rd magnetic coil 421
The 4th magnetic coil 422
The first electric capacity 423
The second electric capacity 424
TVS pipe 50
Common mode protective element 60
Following embodiment further illustrates the utility model in connection with above-mentioned accompanying drawing.
[embodiment]
Consult Fig. 1, be depicted as the electric connector 10 of stacking the second connector of a kind of the first connector, described the first connector is for transmission network communication signal, described the second connector is used for transmitting general serial signal, and described the first connector and the second connector have respectively first interface 101 and the second interface 102.Fig. 2 is to Figure 4 shows that 101 3 kinds of different circuit diagrams of first interface, and it can be used for having the RJ45 electric connector of four signalling channels, and protects for each signalling channel provides the common and different mode of signal.This circuit has the first side 21(cable-side of input and output each other) and the second side 22(physical side), and being formed with first signal passage 31, secondary signal passage 32, the 3rd signalling channel 33, the 4th signalling channel 34 being connected between these both sides, each signalling channel includes isolating transformer 41 and SMD common mode choke 42.Isolating transformer 41 comprises that the first magnetic coil 411 of intercoupling and the two ends of the second magnetic coil 412, the first magnetic coils 411 are connected in the first side 21.SMD common mode choke 42 comprises the 3rd magnetic coil 421 and the 4th magnetic coil 422 intercoupling, the two ends of the second magnetic coil 412 are connected to one end of the 3rd magnetic coil 421, the 4th magnetic coil 422, and the other end of the 3rd magnetic coil 421, the 4th magnetic coil 422 is connected in the second side 22.Wherein the first magnetic coil 411 of first signal passage 31, secondary signal passage 32, the 3rd signalling channel 33 and the 4th signalling channel 34 has respectively one first centre cap 413; after the first centre cap 413 parallel connections of described each signalling channel the first magnetic coil 411, be connected to one first protective circuit, then ground connection.Described the first protective circuit comprises one first electric capacity 423 and a common mode protective element 60 in parallel with the first electric capacity 423; the capacitance of described the first electric capacity 423 is often 1000 pico farads, and described common mode protective element 60 can be piezo-resistance, solid discharging tube and gas discharge tube etc.Wherein the second magnetic coil 412 of first signal passage 31, secondary signal passage 32, the 3rd signalling channel 33 and the 4th signalling channel 34 also has respectively one second centre cap 414, described each signalling channel also comprises respectively one second electric capacity 424, the capacitance of described the second electric capacity 424 is often 470 pico farads or 0.1 microfarad, after the second centre cap 414 of each signalling channel the second magnetic coil 412 is connected in parallel, four of being connected in parallel, second electric capacity 424, the then ground connection of connecting again.
Described first signal passage 31, secondary signal passage 32, the 3rd signalling channel 33 and the 4th signalling channel 34 all also comprise a TVS pipe 50, and described TVS pipe 50 is located between described isolating transformer 41 and described SMD common mode choke 42.One end of described TVS pipe 50 is connected in one end of described the 3rd magnetic coil 421 and one end of described the second magnetic coil 412, and the other end of described TVS pipe 50 is connected in one end of described the 4th magnetic coil 422 and the other end of described the second magnetic coil 412.Described TVS pipe 50 can be protected it before differential mode surge voltage causes damage to SMD common mode choke 42.
According to the bin differences of TVS pipe, can not cause protection channel quantity that IC provides not etc., as Fig. 2 to Fig. 4 has enumerated three kinds of packaged types of TVS pipe:
Be illustrated in figure 2 the first packaged type of TVS pipe, this kind of mode forms an IC by a TVS pipe component package, so the circuit with four signalling channels needs four IC.
Be illustrated in figure 3 the second packaged type of TVS pipe, this kind of mode forms an IC by two TVS pipe component package, so the circuit with four signalling channels only needs two IC.
Be illustrated in figure 4 the third packaged type of TVS pipe, this kind of mode forms an IC by four TVS pipe component package, so the circuit with four signalling channels only needs an IC.
Claims (7)
1. an electric connector, it forms network connecting circuit, described network connecting circuit has the first side and second side of input and output each other, be connected in the some signalling channels between these both sides, each signalling channel includes isolating transformer and SMD common mode choke, isolating transformer comprises first and second magnetic coil intercoupling, the two ends of the first magnetic coil are connected in the first side, SMD common mode choke comprises the 3rd and the 4th magnetic coil intercoupling, the two ends of the second magnetic coil are connected to the 3rd, one end of the 4th coil, the 3rd, the other end of the 4th coil is connected in the second side, wherein the first magnetic coil of each signalling channel all has a centre cap, it is characterized in that: described each signalling channel also comprises the TVS pipe of being located between isolating transformer and SMD common mode choke, one end of described TVS pipe is connected between described tertiary coil and the second magnetic coil, the other end of described TVS pipe is connected between described the 4th coil and the second magnetic coil.
2. electric connector as claimed in claim 1, is characterized in that: after the centre cap parallel connection of described each signalling channel the first magnetic coil, be connected to one first protective circuit.
3. electric connector as claimed in claim 2, is characterized in that: described the first protective circuit comprises the switching mode common mode protective element of one first electric capacity and the one and first Capacitance parallel connection.
4. electric connector as claimed in claim 3, is characterized in that: the first capacitance is 1000 pico farads.
5. electric connector as claimed in claim 1, it is characterized in that: the second magnetic coil of described each signalling channel all has centre cap, after each centre cap is connected in parallel, then two to four second electric capacity that are connected in parallel of connecting, be then connected in the second side joint ground.
6. electric connector as claimed in claim 5, is characterized in that: the second capacitance is 470 pico farads.
7. electric connector as claimed in claim 5, is characterized in that: the second capacitance is 0.1 microfarad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320574422.0U CN203521789U (en) | 2013-09-17 | 2013-09-17 | Electric connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320574422.0U CN203521789U (en) | 2013-09-17 | 2013-09-17 | Electric connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203521789U true CN203521789U (en) | 2014-04-02 |
Family
ID=50380665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320574422.0U Expired - Fee Related CN203521789U (en) | 2013-09-17 | 2013-09-17 | Electric connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203521789U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108539533A (en) * | 2017-03-03 | 2018-09-14 | 富士康(昆山)电脑接插件有限公司 | Network connector |
-
2013
- 2013-09-17 CN CN201320574422.0U patent/CN203521789U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108539533A (en) * | 2017-03-03 | 2018-09-14 | 富士康(昆山)电脑接插件有限公司 | Network connector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140402 |