CN203193074U - Electric connector - Google Patents
Electric connector Download PDFInfo
- Publication number
- CN203193074U CN203193074U CN 201320048092 CN201320048092U CN203193074U CN 203193074 U CN203193074 U CN 203193074U CN 201320048092 CN201320048092 CN 201320048092 CN 201320048092 U CN201320048092 U CN 201320048092U CN 203193074 U CN203193074 U CN 203193074U
- Authority
- CN
- China
- Prior art keywords
- electric connector
- differential signal
- primary coil
- signal channel
- centre cap
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
Provided is an electric connector, comprising a filtering module. The filtering module forms a filtering circuit used for network signal transmission. The filtering circuit has a physical side, a cable side, and a plurality of differential signal channels disposed between the two sides. Each differential signal channel comprises an isolation transformer. The isolation transformer comprises a primary coil and a secondary coil which are coupled with each other. The primary coil is provided with two outer ends connected with the physical side and center taps disposed between the two outer ends. Each differential signal channel also comprises two common-mode filtering capacitors with same capacitance, and an electrode of each common-mode filtering capacitor is connected with the outer end of the primary coil, and the other electrode is connected with ground.
Description
[technical field]
The utility model is relevant a kind of electric connector, relates in particular to a kind of filter structure of electric connector.
[background technology]
The United States Patent (USP) of bulletin disclosed a kind of electric connector US7708595B2 number on May 4th, 2010, it comprises insulating body, be installed in the filter module of insulating body, and be coated on the shield shell of insulating body, described filter module is formed for the filter circuit of network signal transmission, described filter circuit has physical side and cable-side, and be connected in some differential signal channel between these both sides, described each differential signal channel comprises isolating transformer, common-mode filter, and tap shunt capacitance, described isolating transformer comprises primary coil and the secondary coil that intercouples, described primary coil is provided with two outer ends that are connected to physical side and the centre cap between two outer ends, and described tap shunt capacitance is connected between the centre cap of physical side and primary coil.
[utility model content]
Technical problem to be solved in the utility model provides the better electric connector of a kind of filter action.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of electric connector, it comprises filter module, described filter module is formed for the filter circuit of network signal transmission, described filter circuit has physical side and cable-side, and be connected in some differential signal channel between these both sides, each differential signal channel comprises isolating transformer, described isolating transformer comprises primary coil and the secondary coil that intercouples, described primary coil is provided with two outer ends that are connected to physical side and the centre cap between two outer ends, described each differential signal channel also comprises two common mode filtering electric capacity that capacitance is identical, a wherein utmost point of each common mode filtering electric capacity is connected in the outer end of primary coil, another utmost point ground connection.
With respect to prior art, increased common mode filtering electric capacity in the described filter module, can promote the filter effect of electric connector better.
Other concrete features of the present utility model are as follows:
Described each differential signal channel also comprises the tap shunt capacitance, and a utmost point of described tap shunt capacitance is connected in the centre cap of primary coil, another utmost point ground connection.
Described each differential signal channel also comprises common-mode filter, and described common-mode filter is connected between common mode filtering electric capacity and the isolating transformer.
The appearance value of described common mode filtering electric capacity is no more than 10pF.
The centre cap of described primary coil is connected in a direct current power supply.
Described secondary coil is provided with two outer ends that are connected to cable-side and the centre cap between two outer ends, and the centre cap of described secondary coil all connects a resistance, the capacity earth of connecting again after the described resistance parallel connection.
Described electric connector is the RJ45 electric connector.
[description of drawings]
Fig. 1 is the stereogram that meets electric connector of the present utility model.
Fig. 2 is the three-dimensional exploded view of electric connector shown in Figure 1.
Fig. 3 is the stereogram of RJ45 terminal module shown in Figure 2.
Fig. 4 is the rearview that the internal circuit board of electronic component is installed shown in Figure 2.
Fig. 5 is the front view that the internal circuit board of electronic component is installed shown in Figure 2.
Fig. 6 is that Fig. 1 is to the circuit diagram of electric connector shown in Figure 5.
Fig. 7 is the electric connector circuit diagram of (not containing common-mode filter).
[main element symbol description]
Preceding shield shell 102
The plug receptacle 105 of RJ45
RJ45 docks terminal 108
Fixed block 110
The plug receptacle 111 of USB
Isolating transformer 113
The second centre cap 116'
The second end 117'
Common-mode filter 118
Common mode filtering electric capacity 120
High-voltage capacitance 123
Following embodiment will further specify the utility model in conjunction with above-mentioned accompanying drawing.
[embodiment]
As Fig. 1 to Fig. 5, it is depicted as and meets a kind of electric connector 100 of the present utility model, described electric connector 100 piles up the electric connector of USB for RJ45, it comprises plug receptacle 105 of RJ45 and two plug receptacles 111 of USB, the plug receptacle 105 of described RJ45 places on the plug receptacle 111 of USB, described electric connector 100 is in order to being installed on the external circuit board (not shown), and it comprises insulating body 101, be installed on the RJ45 terminal module 106 of insulating body 101 docks terminal 112 and is coated on insulating body 101 with USB shield shell.Described RJ45 terminal module 106 comprises internal circuit board 107, be installed on the RJ45 butt joint terminal 108 on the internal circuit board 107, the pin terminal assemblies, and some electronic components, described RJ45 butt joint terminal 108 is installed on the plug receptacle 105 of RJ45, described pin terminal assemblies comprises some pin terminals 109 and fixed block 110, described pin terminal 109 is immobilizated in fixed block 110, described electronic component comprises isolating transformer 113, common-mode filter 118, tap shunt capacitance 119, common mode filtering electric capacity 120, exclusion 122, and high-voltage capacitance 123, described USB butt joint terminal 112 is installed on the plug receptacle 111 of USB, shield shell 102 and back shield shell 103 before described shield shell comprises, described preceding shield shell 102 and back shield shell 103 buckle fixings.
As Fig. 6, it is depicted as and meets Fig. 1 to the circuit diagram of electric connector shown in Figure 5, described electric connector has filter module, described filter module is formed for the filter circuit of network signal transmission, described filter circuit has physical side and cable-side, and be connected in four differential signal channel between these both sides, each differential signal channel comprises isolating transformer 113 and common-mode filter 118, described isolating transformer 113 comprises the primary coil 114 and secondary coil 115 that intercouples, described primary coil 114 is provided with the two second end 117' that are connected to physical side and the second centre cap 116' between two second end 117', and the described second centre cap 116' is connected in a direct current power supply.Described each differential signal channel also comprises two common mode filtering electric capacity 120 that capacitance is identical, a wherein utmost point of each common mode filtering electric capacity 120 is connected in the second end 117' of primary coil 114, another utmost point ground connection, the appearance value of described common mode filtering electric capacity 120 is no more than 10pF.Described common-mode filter 118 is connected between common mode filtering electric capacity 120 and the isolating transformer 113.Described each differential signal channel also comprises tap shunt capacitance 119, and a utmost point of described tap shunt capacitance 119 is connected in common-mode filter 118, another utmost point ground connection.Described secondary coil 115 is provided with two first ends 117 and first centre cap 116 between two first ends 117 that is connected to cable-side, first centre cap 116 of described secondary coil 115 all connects a resistance 121, the high-voltage capacitance of connecting again after described resistance 121 parallel connections 123 ground connection.
The filter module of described electric connector also can not be provided with common-mode filter, and all the other structures are all identical with above-mentioned electric connector.As Fig. 7, it is depicted as and meets this electric connector circuit diagram of (not containing common-mode filter), described electric connector has filter module, described filter module is formed for the filter circuit of network signal transmission, described filter circuit has physical side and cable-side, and be connected in four differential signal channel between these both sides, each differential signal channel comprises isolating transformer 113, described isolating transformer 113 comprises the primary coil 114 and secondary coil 115 that intercouples, described primary coil 114 is provided with the two second end 117' that are connected to physical side and the second centre cap 116' between two second end 117', and the described second centre cap 116' is connected in a direct current power supply.Described each differential signal channel also comprises two common mode filtering electric capacity 120 that capacitance is identical, a wherein utmost point of each common mode filtering electric capacity 120 is connected in the second end 117' of primary coil 114, another utmost point ground connection, the appearance value of described common mode filtering electric capacity 120 is no more than 10pF.Described each differential signal channel also comprises tap shunt capacitance 119, and a utmost point of described tap shunt capacitance 119 is connected in the second centre cap 116' of primary coil 114, another utmost point ground connection.Described secondary coil 115 is provided with two first ends 117 and first centre cap 116 between two first ends 117 that is connected to cable-side, first centre cap 116 of described secondary coil 115 all connects a resistance 121, the high-voltage capacitance of connecting again after described resistance 121 parallel connections 123 ground connection.
Claims (7)
1. electric connector, it comprises filter module, described filter module is formed for the filter circuit of network signal transmission, described filter circuit has physical side and cable-side, and be connected in some differential signal channel between these both sides, each differential signal channel comprises isolating transformer, described isolating transformer comprises primary coil and the secondary coil that intercouples, described primary coil is provided with two outer ends that are connected to physical side and the centre cap between two outer ends, it is characterized in that: described each differential signal channel also comprises two common mode filtering electric capacity that capacitance is identical, a wherein utmost point of each common mode filtering electric capacity is connected in the outer end of primary coil, another utmost point ground connection.
2. electric connector as claimed in claim 1, it is characterized in that: described each differential signal channel also comprises the tap shunt capacitance, and a utmost point of described tap shunt capacitance is connected in the centre cap of primary coil, another utmost point ground connection.
3. electric connector as claimed in claim 1, it is characterized in that: described each differential signal channel also comprises common-mode filter, and described common-mode filter is connected between common mode filtering electric capacity and the isolating transformer.
4. electric connector as claimed in claim 1, it is characterized in that: the appearance value of described common mode filtering electric capacity is no more than 10pF.
5. electric connector as claimed in claim 1, it is characterized in that: the centre cap of described primary coil is connected in a direct current power supply.
6. electric connector as claimed in claim 1, it is characterized in that: described secondary coil is provided with two outer ends that are connected to cable-side and the centre cap between two outer ends, the centre cap of described secondary coil all connects a resistance, the capacity earth of connecting again after the described resistance parallel connection.
7. electric connector as claimed in claim 1, it is characterized in that: described electric connector is the RJ45 electric connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320048092 CN203193074U (en) | 2013-01-29 | 2013-01-29 | Electric connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320048092 CN203193074U (en) | 2013-01-29 | 2013-01-29 | Electric connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203193074U true CN203193074U (en) | 2013-09-11 |
Family
ID=49109904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320048092 Expired - Lifetime CN203193074U (en) | 2013-01-29 | 2013-01-29 | Electric connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203193074U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103731114A (en) * | 2014-01-03 | 2014-04-16 | 肖白玉 | Filtering circuit |
-
2013
- 2013-01-29 CN CN 201320048092 patent/CN203193074U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103731114A (en) * | 2014-01-03 | 2014-04-16 | 肖白玉 | Filtering circuit |
| CN103731114B (en) * | 2014-01-03 | 2017-01-25 | 李建尧 | Filtering circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130911 |