CN102882074B - Electric connector - Google Patents
Electric connector Download PDFInfo
- Publication number
- CN102882074B CN102882074B CN201110197191.1A CN201110197191A CN102882074B CN 102882074 B CN102882074 B CN 102882074B CN 201110197191 A CN201110197191 A CN 201110197191A CN 102882074 B CN102882074 B CN 102882074B
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- Prior art keywords
- transmission channel
- common mode
- mode choke
- transformer
- transmission
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Abstract
The present invention discloses a kind of electric connector, there are second side relative with the first side, the first side and the some transmission channels between the first side and the second side, transformer and common mode choke is connected with in each transmission channel, in part transmission channel, the first connection transformer from the first side, connect common mode choke again, be finally connected to the second side; In all the other transmission channels, first connect common mode choke from the first side, then connection transformer, be finally connected to the second side.The order of connection in fractional transmission passage in the order of connection of transformer and common mode choke and other transmission channel is different, can reduce the signal cross-talk between transmission channel, ensure stable signal transmission.
Description
[technical field]
The present invention relates to a kind of electric connector, particularly relate to a kind of syndeton of magnetic element of electric connector.
[background technology]
The RJ45 electric connector being applicable to network communication is generally provided with magnetic element to reach filtering and to prevent the effect of electromagnetic interference.This kind of electric connector is installed on the external circuit board and includes insulating body and be contained in some conducting terminals of insulating body, insulating body is provided with docking port and inserts for butt connector, described docking port side is defined as cable end, the external circuit board side is defined as physics end, electric connector is provided with some transmission channels between cable end and physics end, magnetic element is connected with in each transmission channel, this magnetic element comprises transformer and common mode choke, from the first connection transformer of cable end in each transmission channel, then common mode choke is connected, finally be connected to physics end, or first connect common mode choke from cable end, then connection transformer, be finally connected to physics end.But the common mode choke of each transmission channel is positioned at electric connector the same side (i.e. physics end or cable end), signal cross-talk can be produced between transmission channel like this, be unfavorable for that signal stabilization transmits.
Therefore, be necessary to improve to solve aforementioned drawback of the prior art to aforementioned electric connector in fact.
[summary of the invention]
Main purpose of the present invention is to provide a kind of electric connector reducing signal cross-talk between transmission channel.
For reaching above-mentioned purpose, the present invention adopts following technical scheme: a kind of electric connector, there are second side relative with the first side, the first side and the some transmission channels between the first side and the second side, transformer and common mode choke is connected with in each transmission channel, in part transmission channel, the first connection transformer from the first side, then connect common mode choke, be finally connected to the second side; In all the other transmission channels, first connect common mode choke from the first side, then connection transformer, be finally connected to the second side.
Compared with prior art, the invention has the advantages that: the order of connection in fractional transmission passage in the order of connection of transformer and common mode choke and other transmission channel is different, can reduce the signal cross-talk between transmission channel, ensure stable signal transmission.
For reaching above-mentioned purpose, the present invention also can adopt following technical scheme: a kind of electric connector, there are second side relative with the first side, the first side and the some transmission channels between the first side and the second side, transformer and common mode choke is connected with in each transmission channel, in part transmission channel, transformer compares common mode choke closer to the first side; In all the other transmission channels, transformer compares common mode choke closer to the second side.
Compared with prior art, the invention has the advantages that: the common mode choke in the common mode choke in fractional transmission passage and all the other transmission channels is positioned at not homonymy, can reduce the signal cross-talk between transmission channel, ensure stable signal transmission.
[accompanying drawing explanation]
Fig. 1 is the three-dimensional assembly diagram of electric connector of the present invention;
Fig. 2 is the circuit theory diagrams of first embodiment of the invention;
Fig. 3 is the circuit theory diagrams of second embodiment of the invention.
[embodiment]
The embodiment of electric connector of the present invention is described in detail below in conjunction with accompanying drawing.
As shown in Figure 1, present embodiment electric connector 100 is a kind of stack-type electric connector, in order to be mounted on the external circuit board (not shown), comprise the RJ electric connector 1 being positioned at top side and two the USB electric connectors 2 be positioned at below RJ electric connector 1, the present invention relates generally to RJ electric connector 1.
As shown in Figure 2, be first embodiment of the invention circuit diagram, electric connector 1 comprises the first side a (cable-side), the second side b(physical side relative with the first side) and be positioned at some transmission channels of the first side a and the second side b.Some conducting terminals (J1 to J8) are positioned at the first side a in order to realize electrically conducting with a butt connector (not shown).Second side b is then in the external circuit board side.Transmission channel comprises the first transmission channel 11, second transmission channel 12, the 3rd transmission channel 13 and the 4th transmission channel 14 successively, a pair (such as J1 and J2) in the conducting terminal difference signal terminal that partners is connected in a transmission channel, in addition, each transmission channel is also connected with transformer 15 and common mode choke 16.In first transmission channel 11 and the 3rd transmission channel 13, transformer 15 compares common mode choke 16 closer to the second side b, namely in circuit connects, first connects common mode choke 16 from the first side a, then connection transformer 15, is finally connected to the second side b.In second transmission channel 12 and the 4th transmission channel 14, transformer 15 compares common mode choke 16 closer to the first side a, namely in circuit connects, from the first connection transformer 15 of the first side a, then connects common mode choke 16, is finally connected to the second side b.Setting like this, the common mode choke 16 of adjacent transmission channels can be made to misplace arrange (common mode choke 16 is different from transformer 15 order of connection), common mode choke 16 in one transmission channel is near the first side a, and the common mode choke 16 in another transmission channel is near the second side b.That is, the common mode choke 16 in adjacent transmission channels is placed in different end, so can reduce the signal cross-talk between transmission channel, ensures stable signal transmission.
As shown in Figure 3, be second embodiment of the invention circuit diagram, similar with the first execution mode, in this second embodiment, electric connector 1 also comprises the first side a, the second side b relative with the first side and is positioned at some transmission channels of the first side a and the second side b.Some conducting terminals (J1 to J8) are positioned at the first side a in order to realize electrically conducting with a butt connector (not shown).Second side b is then in the external circuit board side.Transmission channel comprises the first transmission channel 11, second transmission channel 12, the 3rd transmission channel 13 and the 4th transmission channel 14 successively, a pair (such as J1 and J2) in the conducting terminal difference signal terminal that partners is connected in a transmission channel, in addition, each transmission channel is also connected with transformer 15 and common mode choke 16.Wherein, in the first transmission channel 11 and the 3rd transmission channel 13, transformer 15 compares common mode choke 16 closer to the first side a, namely in circuit connects, from the first connection transformer 15 of the first side a, then connects common mode choke 16, is finally connected to the second side b.In second transmission channel 12 and the 4th transmission channel 14, transformer 15 compares common mode choke 16 closer to the second side b, namely in circuit connects, first connects common mode choke 16 from the first side a, then connection transformer 15, is finally connected to the second side b.Setting like this, the common mode choke 16 of adjacent transmission channels can be made to misplace arrange (common mode choke 16 is different from transformer 15 order of connection), common mode choke 16 in one transmission channel is near the first side a, and the common mode choke 16 in another transmission channel is near the second side b.That is, the common mode choke 16 in adjacent transmission channels is placed in different end, so can reduce the signal cross-talk between transmission channel, ensures stable signal transmission.
Certainly, also can transformer 15(common mode choke 16 in fractional transmission passage) near the first side a, transformer 15(common mode choke 16 in all the other transmission channels) near the second side b, can reduce equally train of signal between transmission channel around, ensure stable signal transmission.
Claims (8)
1. an electric connector, there are second side relative with the first side, the first side and the some transmission channels between the first side and the second side, transformer and common mode choke is connected with in each transmission channel, it is characterized in that: in a part of transmission channel, the first connection transformer from the first side, connect common mode choke again, be finally connected to the second side, in all the other transmission channels, first common mode choke is connected from the first side, connection transformer again, finally be connected to the second side, described transformer has the primary coil and secondary coil that intercouple, described primary coil and secondary coil all have centre cap, described common mode choke is three line common mode chokes, described common mode choke has the first end be connected with transformer and the second end be connected with the first side or the second side, described first end has the first center line be connected with transformer center tap, described second end has the second center line be connected with resistance or electric capacity, the centre cap of transformer near the first side and the center line of common mode choke are connected in parallel to an earth terminal respectively with after a capacitances in series, another earth terminal is connected in parallel to respectively with after a resistant series near the centre cap of the second side transformer and the center line of common mode choke.
2. electric connector as claimed in claim 1, is characterized in that: from the first connection transformer in described first side in a transmission channel, then connect common mode choke; In adjacent transmission channels, first connect common mode choke from described first side, then connection transformer.
3. electric connector as claimed in claim 1 or 2, it is characterized in that: described transmission channel comprises four, be followed successively by the first transmission channel, the second transmission channel, the 3rd transmission channel and the 4th transmission channel, in first transmission channel and the 3rd transmission channel, the first connection transformer from the first side, then connect common mode choke; In second transmission channel and the 4th transmission channel, first connect common mode choke from described first side, then connection transformer.
4. electric connector as claimed in claim 1 or 2, it is characterized in that: described transmission channel comprises four, be followed successively by the first transmission channel, the second transmission channel, the 3rd transmission channel and the 4th transmission channel, in first transmission channel and the 3rd transmission channel, first common mode choke is connected from described first side, then connection transformer; In second transmission channel and the 4th transmission channel, the first connection transformer from the first side, then connect common mode choke.
5. an electric connector, there are second side relative with the first side, the first side and the some transmission channels between the first side and the second side, transformer and common mode choke is connected with in each transmission channel, it is characterized in that: in a part of transmission channel, transformer compares common mode choke closer to the first side, in all the other transmission channels, transformer compares common mode choke closer to the second side, described transformer has the primary coil and secondary coil that intercouple, described primary coil and secondary coil all have centre cap, described common mode choke is three line common mode chokes, described common mode choke has the first end be connected with transformer and the second end be connected with the first side or the second side, described first end has the first center line be connected with transformer center tap, described second end has the second center line be connected with resistance or electric capacity, the centre cap of transformer near the first side and the center line of common mode choke are connected in parallel to an earth terminal respectively with after a capacitances in series, another earth terminal is connected in parallel to respectively with after a resistant series near the centre cap of the second side transformer and the center line of common mode choke.
6. electric connector as claimed in claim 5, is characterized in that: in a transmission channel, transformer compares common mode choke closer to the first side; In adjacent transmission channels, transformer compares common mode choke closer to the second side.
7. the electric connector as described in claim 5 or 6, it is characterized in that: described transmission channel comprises four, be followed successively by the first transmission channel, the second transmission channel, the 3rd transmission channel and the 4th transmission channel, in first transmission channel and the 3rd transmission channel, transformer compares common mode choke closer to the first side; In second transmission channel and the 4th transmission channel, transformer compares common mode choke closer to the second side.
8. the electric connector as described in claim 5 or 6, it is characterized in that: described transmission channel comprises four, be followed successively by the first transmission channel, the second transmission channel, the 3rd transmission channel and the 4th transmission channel, in first transmission channel and the 3rd transmission channel, transformer compares common mode choke closer to the second side; In second transmission channel and the 4th transmission channel, transformer compares common mode choke closer to the first side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110197191.1A CN102882074B (en) | 2011-07-14 | 2011-07-14 | Electric connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110197191.1A CN102882074B (en) | 2011-07-14 | 2011-07-14 | Electric connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102882074A CN102882074A (en) | 2013-01-16 |
| CN102882074B true CN102882074B (en) | 2015-12-02 |
Family
ID=47483305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110197191.1A Expired - Fee Related CN102882074B (en) | 2011-07-14 | 2011-07-14 | Electric connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102882074B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106340761B (en) * | 2015-07-10 | 2018-08-31 | 富士康(昆山)电脑接插件有限公司 | Network interface circuit and apply its network interface connector |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2696170Y (en) * | 2004-04-07 | 2005-04-27 | 宣得股份有限公司 | Filter connector |
| CN2805147Y (en) * | 2005-04-28 | 2006-08-09 | 连康电子股份有限公司 | Connector |
| CN101673614A (en) * | 2008-09-10 | 2010-03-17 | 富士康(昆山)电脑接插件有限公司 | Electric connector system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6492880B1 (en) * | 2001-02-21 | 2002-12-10 | Cisco Technology, Inc. | Common mode termination |
| CN2845325Y (en) * | 2005-11-08 | 2006-12-06 | 中兴通讯股份有限公司 | Electric circuit for inhibiting electromagnetic interfere on Ethernet interface |
| TWI318814B (en) * | 2006-08-14 | 2009-12-21 | Giga Byte Tech Co Ltd | Connection apparatus and high voltage impulse protection methods thereof |
| CN201418033Y (en) * | 2009-03-12 | 2010-03-03 | 唐硕科技有限公司 | network transformer for reducing electromagnetic interference |
-
2011
- 2011-07-14 CN CN201110197191.1A patent/CN102882074B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2696170Y (en) * | 2004-04-07 | 2005-04-27 | 宣得股份有限公司 | Filter connector |
| CN2805147Y (en) * | 2005-04-28 | 2006-08-09 | 连康电子股份有限公司 | Connector |
| CN101673614A (en) * | 2008-09-10 | 2010-03-17 | 富士康(昆山)电脑接插件有限公司 | Electric connector system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102882074A (en) | 2013-01-16 |
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Granted publication date: 20151202 Termination date: 20170714 |
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| CF01 | Termination of patent right due to non-payment of annual fee |