CN201266911Y - Filtering circuit and electric connector with the circuit - Google Patents
Filtering circuit and electric connector with the circuit Download PDFInfo
- Publication number
- CN201266911Y CN201266911Y CNU2008200349243U CN200820034924U CN201266911Y CN 201266911 Y CN201266911 Y CN 201266911Y CN U2008200349243 U CNU2008200349243 U CN U2008200349243U CN 200820034924 U CN200820034924 U CN 200820034924U CN 201266911 Y CN201266911 Y CN 201266911Y
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- Prior art keywords
- filter circuit
- common mode
- electric connector
- magnetic core
- coil
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Abstract
The utility model relates to a filter circuit, comprising four transmission channels which respectively comprise an isolating transformer and a common mode choke. The common mode chokes of all the transmission channels are wound on one magnetic core jointly; an electric connector which applies the filter circuit, and comprises an insulating body, a conductive terminal arranged on the insulating body and a signal processing module which is electrically connected with the conductive terminal; and the module comprises the filter circuit. The filter circuit and the electric connector of the circuit which applies the interface can reduce the use amount of the magnetic core and reduce the working load of winding by hand when in manufacturing, thus improving the production efficiency and reducing the product cost.
Description
[technical field]
The utility model relates to a kind of filter circuit and has the electric connector of this filter circuit, particularly relates to a kind of electric connector that is applied to the filter circuit and the application network of network and has this filter circuit.
[technical background]
Along with the continuous development of the communication technology, improving constantly of data transmission bauds proposes stricter requirement to the comprehensive electric property of electric connector simultaneously.
The Patent data relevant with this case sees also No. the 528221st, the Taiwan patent of on April 11st, 2003 bulletin, this patent has disclosed a kind of electric connector that is applied to 10/100/1000 Base-T network, this connector comprises pedestal, coat the pedestal of pedestal and accommodate electric device in the pedestal, and this electric device comprises a circuit board and is welded in some filter module on the circuit board.When this electric connector was applied to 10/100 Base-T network, filter module comprised two isolating transformers, two common mode chokes and an autotransformer, and these inductance components comprise a magnetic core respectively and are wound in coil on the magnetic core.When this connector was applied to the 1000Base-T network, filter module comprised four isolating transformers and four common mode chokes, and these eight inductance components comprise a magnetic core respectively and are wound in coil on the magnetic core.
Yet, the Taiwan filter module that No. 528221 patent disclosed and use the electric connector of this filter module need use a large amount of inductance components, take big quantity space in the connector, and these components and parts all need manual coiling, thereby product material cost and production cost are higher.Therefore, be necessary to design a kind of electric connector that can overcome the filter circuit of above shortcoming and use this filter circuit.
[utility model content]
The electric connector that the purpose of this utility model is to provide a kind of volume filter circuit little, convenient for production, with low cost and uses this filter circuit.
For the filter circuit that a kind of volume is little, convenient for production, cost is low is provided, the utility model adopts following technical scheme: a filter circuit, in order to connect the first side line road and the second side line road, this filter circuit comprises some transmission channels, each transmission channel includes a transformer and a common mode choke, transformer one side of these each transmission channels is connected to first circuit, the opposite side of transformer is connected to second circuit by common mode choke, and the common mode choke of each transmission channel is wound to same magnetic core.
For a kind of convenient for production, electric connector that cost is low is provided, the utility model adopts following technical scheme: an electric connector, comprise an insulating body, in order to the butt joint terminal that is connected with a butt connector, in order to electric connector is connected to the pin terminals of a mainboard, a signal processing module that connects butt joint terminal and pin terminals, this signal processing module comprises four transmission channels, each transmission channel includes a transformer and a common mode choke, and the common mode choke of four transmission channels is wound to same magnetic core.
With respect to prior art, whole common mode chokes are wound on the same magnetic core in the filter circuit of the present utility model, reduced signal processing module volume, when reducing the cost of raw material, also can reduce the operation of manual winding operation, thereby can reduce product cost.
[description of drawings]
Fig. 1 is the line map that meets filter circuit of the present utility model.
Fig. 2 is the testing electrical property figure of filter circuit shown in Figure 1.
Fig. 3 is the stereogram of the utility model electric connector.
Fig. 4 is the three-dimensional exploded view of electric connector shown in Figure 3.
Fig. 5 is another angle three-dimensional exploded view of electric connector shown in Figure 3.
Fig. 6 is the signal processing module three-dimensional exploded view of electric connector shown in Figure 3.
Fig. 7 is another angle three-dimensional exploded view of the signal processing module of electric connector shown in Figure 3.
[embodiment]
See also shown in Figure 1ly, meet a kind of filter circuit of the present utility model 1 and be a kind of data network interface circuit, be used for connecting circuit plate end 101 and cable end 102, this filter circuit comprises first passage 11, second channel 12, third channel 21 and four-way 22.
First passage 11 comprises first isolating transformer 111 and first common mode choke 112.First isolating transformer 111 comprises primary coil 113 and secondary coil 115, and this primary coil 113 has two link 113a, 113b and a centre tap 113c, and secondary coil 115 has two link 115a, 115b and a centre tap 115c.Two link 115a, 115b of secondary coil 115 are connected to cable end 102, ground connection after the centre tap 115c of secondary coil 115 connects with one 75 ohm resistance 13 and an electric capacity 15.First common mode choke 112 comprises two coil 112a, 112b, and the side of this two coil 112a, 112b is connected to circuit board end 101, and opposite side is connected to two link 113a, 113b of first isolating transformer, 111 primary coils 113.Ground connection after the centre tap of primary coil 113 is connected with the electric capacity 14 of four parallel connections.
Second channel 12 comprises second isolating transformer 121 and second common mode choke 122.Second isolating transformer 121 comprises primary coil 123 and secondary coil 125, this primary coil 123 has two link 123a, 123b and a centre tap 123c, secondary coil 125 has two link 125a125b and a centre tap 125c, two link 125a, 125b of secondary coil 125 are connected to cable end 102, ground connection after the centre tap 125c of secondary coil 125 connects with one 75 ohm resistance 13 and electric capacity 15.Second common mode choke 122 comprises two coil 122a, 122b, the side of this two coil 122a, 122b is connected to circuit board end 101, opposite side is connected to two link 123a, 123b of second isolating transformer, 121 primary coils 123, and the centre tap 123c of primary coil 123 then is connected to the centre tap 113c of first isolating transformer, 111 primary coils 113.The common mode choke 112 of first passage 11 and second common mode choke 122 are wound on the same magnetic core.
The structure second channel 12 of third channel 21 and four-way 22 is identical.The centre tap 213c of first coil 213 of the isolating transformer 211 of third channel 21 is connected to the centre tap 113c of first isolating transformer, 111 primary coils 113, and the centre tap 223c of first coil 223 of the isolating transformer 221 of four-way 22 also is connected to the centre tap 113c of first isolating transformer, 111 primary coils 113.The common mode choke 212,222 of third channel 21 and four-way 22 and first common mode choke 112 and second common mode choke 122 are wound to same magnetic core.
See also shown in Figure 2ly, be the testing electrical property figure of filter circuit 1 shown in Figure 1, main signal is the return loss (Return Loss) of this filter circuit 1 when being applied to different impedance load among this figure.The transverse axis coordinate is a frequency values among the figure, and scope is 0 to 100 megahertz (MHz), and ordinate of orthogonal axes is the measured return loss of filter circuit 1, and scope is 0～35 decibel (dB).Ls is 1000 Base-T industrywide standard values among the figure, L1 is the return loss of the cable end 102 of filter circuit 1 when connecting 100 ohm load, L2 is the return loss of the cable end 102 of filter circuit 1 when connecting 85 ohm load, L3 is the return loss of the cable end 102 of filter circuit 1 when connecting 115 ohm load, as can be seen from the figure, L1, L2, L3 are all more than standard value Ls, that is filter circuit 1 all can satisfy the industry requirement accepting 85～115 ohm of loads in the scope.
See also Fig. 3 to shown in Figure 5, for and be applied to data transmission network and have the electric connector 3 of above filter circuit 1, this electric connector 3 is a network electric connector (Modular Jack) and the USB stacking connector, and it comprises behind the preceding shielding casing 4, one shielding casing 5, insulating body 6, two USB terminal group 7, two LED indicating devices 8 and terminal modules 9.
Insulating body 6 comprises a network interface 61, two USB interface 62 and two LED indicating device receiving spaces 63 that are positioned at the both sides, upper end.Two USB terminal group 7 are mounted to two USB interface 62 places respectively, and two LED indicating devices 8 are mounted to two LED receiving spaces 63 respectively, and terminal module 9 is mounted to the rear portion of insulating body 6, and have butt joint terminal 91 to extend to network interface 61.Before shielding casing 4 be mounted to respectively on the insulating body 6 with back shielding casing 5, thereby and fasten mutually insulating body 6 covered fully to prevent that external interference source from impacting transmission line in the insulating body.
See also Fig. 6 to shown in Figure 7, terminal module 9 comprises butt joint terminal 91, circuit board 92, be welded in magnetic bead type magnetic element 93, the terminal base 94 on the circuit board 92 and be fixed in pin terminals 95 on the terminal base 94.Wherein, circuit board 92 constitutes a signal processing module with magnetic element 93, promptly above filter circuit 1.Magnetic element 93 comprises first magnetic core 931, second magnetic core 932, the 3rd magnetic core 933, the 4th magnetic core 934 and the 5th magnetic core 935, is wound with first group of coil 936, second group of coil 937, the 3rd group of coil 938, the 4th group of coil 939 on these magnetic cores respectively.First magnetic core 931 and first group of coil 936 are corresponding to first isolating transformer 111 in the middle of the filter circuit 1, second magnetic core 932 and second group of coil 937 are corresponding to second isolating transformer 121, the 3rd magnetic core 932 and the 3rd group of coil 938 corresponding to the 3rd isolating transformer 211, the four magnetic cores 934 and the 4th group of coil 939 corresponding to the 4th isolating transformer 221.The 5th magnetic core 935 is to have two through holes on a column magnetic core and this magnetic core, and first group of part to the 4th group of coil 936～939 is wound to two through holes of the 5th magnetic core 935 jointly to form the common mode choke 112,122,212,222 in the filter circuit 1.Be welded with five electric capacity 96 on the one side of circuit board, these electric capacity 96 correspond respectively to the electric capacity 14,15 of filter circuit 1.Being respectively equipped with 921,922, the first groups of coils 936 of some welding foots to the 4th group of coil 939 on the two sides of circuit board 92 is respectively welded on the welding foot 921.
Butt joint terminal 91 comprises docking section 911 and weld part 912, docking section 911 extends in the network interface 61 after terminal module 9 is mounted to insulating body 3,912 of weld parts are soldered on the welding foot 922 of circuit board 92, thereby make butt joint terminal 91 link to each other with the cable end 102 of filter circuit 1.
The pin of two LED indicating devices (not indicating) also passes and is soldered to the through hole of offering circuit board 92 upper ends (not indicating), and is connected to a mounting circuit boards (not shown) by means of conductive path on the circuit board 92 and second pin terminals that is soldered to circuit board.
The signal processing module of electric connector 3 uses five magnetic cores altogether, the use amount of using eight magnetic cores to reduce magnetic core in a large number with respect to traditional electric connector has also reduced the volume of filter circuit 1, adopt manual coiling in view of present magnetic bead type inductance element simultaneously more, filter circuit 1 only need carry out five coilings and get final product, winding the line respectively with respect to eight magnetic cores to significantly reduce the workload of manual coiling, thereby can promote production efficiency, reduce production costs.
Claims (7)
1. a filter circuit, in order to connect the first side line road and the second side line road, it comprises some transmission channels, each transmission channel includes a transformer and a common mode choke, transformer one side of these each transmission channels is connected to first circuit, the opposite side of transformer is connected to second circuit by described common mode choke, it is characterized in that: the common mode choke of described each transmission channel is wound to same magnetic core.
2. filter circuit as claimed in claim 1 is characterized in that: described filter circuit comprises four transmission channels, and the transformer of each passage has a magnetic core respectively.
3. filter circuit as claimed in claim 1 is characterized in that: the shared magnetic core of described each common mode choke is a diplopore column magnetic core.
4. filter circuit as claimed in claim 1, it is characterized in that: the transformer of described each transmission channel comprises first coil and second coil, second coil is connected to described common mode choke, first coil then is connected to the first side line road, and first coil has a centre tap, this centre tap ground connection.
5. an electric connector, it comprises an insulating body, in order to the butt joint terminal that is connected with a butt connector, in order to electric connector is connected to the pin terminals of a mainboard, a signal processing module that connects butt joint terminal and pin terminals, this signal processing module comprises four transmission channels, each transmission channel includes a transformer and a common mode choke, and it is characterized in that: the common mode choke of described four transmission channels is wound to same magnetic core.
6. electric connector as claimed in claim 5 is characterized in that: described electric connector uses 5 magnetic cores altogether.
7. electric connector as claimed in claim 5 is characterized in that: described magnetic core is column and has two through holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200349243U CN201266911Y (en) | 2008-04-02 | 2008-04-02 | Filtering circuit and electric connector with the circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200349243U CN201266911Y (en) | 2008-04-02 | 2008-04-02 | Filtering circuit and electric connector with the circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201266911Y true CN201266911Y (en) | 2009-07-01 |
Family
ID=40833282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200349243U Expired - Fee Related CN201266911Y (en) | 2008-04-02 | 2008-04-02 | Filtering circuit and electric connector with the circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201266911Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102957148A (en) * | 2011-08-22 | 2013-03-06 | 富士康(昆山)电脑接插件有限公司 | Filter circuit |
| TWI451651B (en) * | 2010-05-12 | 2014-09-01 | Hon Hai Prec Ind Co Ltd | Net interface electrical circuit for protecting common mode circuit |
| CN104092063A (en) * | 2014-07-07 | 2014-10-08 | 深圳市槟城电子有限公司 | Interface connector |
| CN105191015A (en) * | 2013-06-28 | 2015-12-23 | 思科技术公司 | Icm optimization and standardization for automation |
| CN107040229A (en) * | 2015-12-10 | 2017-08-11 | 泰连德国有限公司 | Filter assembly and high-tension connector assembly parts for high-tension connector assembly parts |
| CN109661708A (en) * | 2016-09-08 | 2019-04-19 | 三菱电机株式会社 | Choking-winding |
-
2008
- 2008-04-02 CN CNU2008200349243U patent/CN201266911Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI451651B (en) * | 2010-05-12 | 2014-09-01 | Hon Hai Prec Ind Co Ltd | Net interface electrical circuit for protecting common mode circuit |
| CN102957148A (en) * | 2011-08-22 | 2013-03-06 | 富士康(昆山)电脑接插件有限公司 | Filter circuit |
| CN102957148B (en) * | 2011-08-22 | 2015-05-06 | 富士康(昆山)电脑接插件有限公司 | Filter circuit |
| CN105191015A (en) * | 2013-06-28 | 2015-12-23 | 思科技术公司 | Icm optimization and standardization for automation |
| CN104092063A (en) * | 2014-07-07 | 2014-10-08 | 深圳市槟城电子有限公司 | Interface connector |
| CN107040229A (en) * | 2015-12-10 | 2017-08-11 | 泰连德国有限公司 | Filter assembly and high-tension connector assembly parts for high-tension connector assembly parts |
| CN107040229B (en) * | 2015-12-10 | 2022-07-26 | 泰连德国有限公司 | Filter assembly for a high voltage connector assembly and high voltage connector assembly |
| CN109661708A (en) * | 2016-09-08 | 2019-04-19 | 三菱电机株式会社 | Choking-winding |
| CN109661708B (en) * | 2016-09-08 | 2021-01-12 | 三菱电机株式会社 | Choke coil |
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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 |
Granted publication date: 20090701 Termination date: 20150402 |
|
| EXPY | Termination of patent right or utility model |