CN202887795U - SFP (small form-factor pluggable) high-frequency wire - Google Patents
SFP (small form-factor pluggable) high-frequency wire Download PDFInfo
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- CN202887795U CN202887795U CN 201220596930 CN201220596930U CN202887795U CN 202887795 U CN202887795 U CN 202887795U CN 201220596930 CN201220596930 CN 201220596930 CN 201220596930 U CN201220596930 U CN 201220596930U CN 202887795 U CN202887795 U CN 202887795U
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- heart yearn
- sfp
- conductor
- wire
- frequency line
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Abstract
The utility model discloses an SFP (small form-factor pluggable) high-frequency wire. The SFP high-frequency wire comprises a plurality of core wire groups, a shielding layer coating the plurality of core wire groups and a sheath coating the shielding layer, wherein each wire core group comprises two wire cores, a ground wire, a first aluminum foil warp coating the two wire cores and the ground wire and a self-adhesive polyester layer belt coating the first aluminum foil wrap, and each core wire comprises a conductor as well as an inner insulation layer, a foaming layer and an outer insulation layer coating the conductor from inside to outside. As the inner insulation layer is additionally arranged between the conductor and the foaming layer of the SFP high-frequency wire disclosed by the utility model, and the inner insulation layer can reduce the attenuation of the speed signal of the conductor, the transmission rate of the SFP high-frequency wire can be improved, and 10G/s signals within the length of 10m can be transmitted; and furthermore, the attenuation value is not more than 54dB/10m, the impedance is 95-105 omega, and the delay inequality is not more than 100ps/10m.
Description
Technical field
The utility model relates to a kind of high-frequency line, relates in particular to a kind of SFP high-frequency line.
Background technology
Compact package hot-pluggable module (Small Form-Factor Pluggables, be called for short SFP) be to design according to the GBIC interface, but allow the port density larger than GBIC (the transceiver number of per inch on the mainboard limit), therefore SFP also is known as " mini-GBIC ", SFP module volume ratio GBIC module reduces half, can dispose the port number that has more more than a times at identical panel, more compress size and power consumption, now the basic GBIC that replaces.
Carry out transfer of data by the SFP high-frequency line between the compact package hot-pluggable module.
At present, the heart yearn of a kind of SFP high-frequency line on the market is by conductor, coat successively foaming layer and the external insulation layer of this conductor from inside to outside.
Yet the conductor of above-mentioned SFP high-frequency line is foaming layer outward, and the foam hole that foaming layer has can cause the decay of conductor signal transmission, thereby reduces transmission rate.
Therefore, in the urgent need to a kind of SFP high-frequency line that can transmit more speed, especially need a kind of signal that when 10m is long, can transmit 10G/s.
The utility model content
The purpose of this utility model is to provide a kind of SFP high-frequency line that can transmit more speed, especially can transmit the SFP high-frequency line of the signal of 10G/s when 10m is long.
For achieving the above object, the utility model provides the SFP high-frequency line to comprise some heart yearn groups, the sheath that coats the screen of these some heart yearn groups and coat this screen, each heart yearn group comprise two heart yearns, a ground wire and coat the first aluminium foil of this two heart yearn, ground wire wrapped, coat the wrapped self-adhesion polyester layer band of this first aluminium foil, heart yearn comprises conductor and from inside to outside inner insulating layer, foaming layer and the external insulation layer of coating conductor.
Preferably, the foam degrees of the foaming layer of described heart yearn is 20～40%.
Preferably, the inner insulating layer thickness of described heart yearn is 0.04～0.08mm.
Preferably, the external insulation layer thickness of described heart yearn is 0.04～0.08mm.
Preferably, the wrapped pitch of the first aluminium foil of described two heart yearns is 5.0～7.5mm.
Preferably, the pitch of described self-adhesion polyester layer band is 6.0～7.8mm.
Preferably, the screen of these some heart yearn groups of described coating is from interior non-self-adhesion polyester layer band, the wrapped and woven shield of the second aluminium foil of being followed successively by outward.
Preferably, described conductor is silver-plated conductor.
The utility model SFP high-frequency line is because heart yearn comprises conductor and from inside to outside inner insulating layer, foaming layer and the external insulation layer of coating conductor, only there is the prior art of the heart yearn of foaming layer, external insulation layer to compare outward with conductor, add an inner insulating layer between conductor and the foaming layer, this inner insulating layer can reduce the decay that conductor passes fast signal, thereby can improve the transmission rate of SFP high-frequency line, when 10m is long, can transmit the signal more than the 10G/s, pad value≤54dB/10m, impedance 95～105 Ω, delay inequality≤100ps/10m.
Description of drawings
Fig. 1 is the cross section structure schematic diagram of the utility model SFP high-frequency line.
Each description of reference numerals is as follows among the figure:
Embodiment
By describing technology contents of the present utility model in detail, realized purpose and effect, give explanation below in conjunction with execution mode is detailed.
See also Fig. 1, the sheath 30 that the utility model SFP high-frequency line comprises some heart yearn groups 10, coats the screen 20 of these some heart yearn groups 10 and coat this screen 20.
Each heart yearn group 10 comprises two heart yearns 11, a ground wire 12 and coats the self-adhesion polyester layer band 14 that the first aluminium foil of this two heart yearn 11, a ground wire 12 is wrapped 13, coat this first aluminium foil wrapped 13, and heart yearn 11 comprises conductor 111 and from inside to outside inner insulating layer 112, foaming layer 113 and the external insulation layer 114 of coating conductor 111.Conductor 111 is preferably silver-plated conductor.
Inner insulating layer 112 thickness of heart yearn 11 are preferably 0.04～0.08mm, more preferably 0.04～0.06mm.
External insulation layer 114 thickness of heart yearn 11 are preferably 0.04～0.08mm, more preferably 0.06～0.07mm.
The foam degrees of the foaming layer 113 of heart yearn 11 is preferably 20～40%, and more preferably 25～35%.
The pitch of the first aluminium foil wrapped 13 is preferably 5.0～7.5mm, 6.0～7.0mm more preferably, the wrapped pitch of the first aluminium foil can make inner insulating layer 112, foaming layer 113 and the external insulation layer 114 of heart yearn 11 internal structures be difficult for deforming in this scope when wrapped, especially foaming layer 113 is difficult for deforming, if it is inconsistent that this is the length of two heart yearns 11 that then can cause heart yearn the group 10 because heart yearn 11 of SFP high-frequency line deforms, the inconsistent increase that then can cause delay inequality of length, thus can not satisfy the transmission requirement of high-frequency line delay inequality.
Self-adhesion polyester layer band 14 contains hot melt adhesive, employing adheres on the first aluminium foil wrapped 13 it to the method for self-adhesion polyester layer band 14 heating, this has increased self-adhesion polyester layer band 14 to the first aluminium foil wrapped 13 in it and the coating dynamics of heart yearn 11, make it not yielding, reduce delay inequality, satisfy the transmission requirement of high-frequency line delay inequality.
The pitch of self-adhesion polyester layer band 14 is preferably 6.0～7.8mm, 6.5～7.5mm more preferably, this is because the pitch of self-adhesion polyester layer band 14 can make inner insulating layer 112, foaming layer 113 and the external insulation layer 114 of heart yearn 11 internal structures be difficult for deforming in this scope when wrapped, especially foaming layer 113 is difficult for deforming, and guarantees the transmission requirement of SFP high-frequency line delay inequality.Here be pointed out that the length of two heart yearns 11 that then can cause heart yearn group 10 is inconsistent if the heart yearn of high-frequency line 11 deforms, the inconsistent increase that then can cause delay inequality of length, thus can not satisfy the transmission requirement of SFP high-frequency line delay inequality.
Coat the screen 20 of some heart yearn groups 10 from interior non-self-adhesion polyester layer 21, the second aluminium foil wrapped 22 and the woven shield 23 of being followed successively by outward.
Through experimental verification, the utility model SFP high-frequency line data transmission rate when length is 10m reaches more than the 10G/S, pad value≤54dB/10m, impedance 95～105 Ω, delay inequality≤100ps/10m.
In sum, the utility model SFP high-frequency line is because heart yearn comprises conductor and from inside to outside inner insulating layer, foaming layer and the external insulation layer of coating conductor, only there is the prior art of the heart yearn of foaming layer, external insulation layer to compare outward with conductor, add an inner insulating layer between conductor and the foaming layer, this inner insulating layer can reduce the decay that conductor passes fast signal, thereby can improve the transmission rate of SFP high-frequency line, when 10m is long, can transmit the signal more than the 10G/s, pad value≤54dB/10m, impedance 95～105 Ω, delay inequality≤100ps/10m.
The utility model is not limited to above-mentioned embodiment, and those skilled in the art that also can make multiple variation accordingly, but any and the utility model are equal to or similar variation all should be encompassed in the scope of the utility model claim.
Claims (8)
1. SFP high-frequency line, it is characterized in that: comprise some heart yearn groups, the sheath that coats the screen of these some heart yearn groups and coat this screen, each heart yearn group comprise two heart yearns, a ground wire and coat the first aluminium foil of this two heart yearn, ground wire wrapped, coat the wrapped self-adhesion polyester layer band of this first aluminium foil, heart yearn comprises conductor and from inside to outside inner insulating layer, foaming layer and the external insulation layer of coating conductor.
2. SFP high-frequency line as claimed in claim 1, it is characterized in that: the foam degrees of the foaming layer of described heart yearn is 20～40%.
3. SFP high-frequency line as claimed in claim 1, it is characterized in that: the inner insulating layer thickness of described heart yearn is 0.04～0.08mm.
4. SFP high-frequency line as claimed in claim 1, it is characterized in that: the external insulation layer thickness of described heart yearn is 0.04～0.08mm.
5. SFP high-frequency line as claimed in claim 1, it is characterized in that: the wrapped pitch of the first aluminium foil of described two heart yearns is 5.0～7.5mm.
6. SFP high-frequency line as claimed in claim 1, it is characterized in that: the pitch of described self-adhesion polyester layer band is 6.0～7.8mm.
7. SFP high-frequency line as claimed in claim 1, it is characterized in that: the screen of these some heart yearn groups of described coating is from interior non-self-adhesion polyester layer band, the wrapped and woven shield of the second aluminium foil of being followed successively by outward.
8. SFP high-frequency line as claimed in claim 1, it is characterized in that: described conductor is silver-plated conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220596930 CN202887795U (en) | 2012-11-02 | 2012-11-02 | SFP (small form-factor pluggable) high-frequency wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220596930 CN202887795U (en) | 2012-11-02 | 2012-11-02 | SFP (small form-factor pluggable) high-frequency wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202887795U true CN202887795U (en) | 2013-04-17 |
Family
ID=48079194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220596930 Expired - Lifetime CN202887795U (en) | 2012-11-02 | 2012-11-02 | SFP (small form-factor pluggable) high-frequency wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202887795U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103000270A (en) * | 2012-11-02 | 2013-03-27 | 深圳市沃尔核材股份有限公司 | SFP (small form-factor pluggable) high-frequency wire and method for producing same |
| CN103268788A (en) * | 2013-05-22 | 2013-08-28 | 浙江兆龙线缆有限公司 | Cable with multiple pairs of parallel symmetrical axes |
-
2012
- 2012-11-02 CN CN 201220596930 patent/CN202887795U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103000270A (en) * | 2012-11-02 | 2013-03-27 | 深圳市沃尔核材股份有限公司 | SFP (small form-factor pluggable) high-frequency wire and method for producing same |
| CN103000270B (en) * | 2012-11-02 | 2015-09-23 | 深圳市沃尔核材股份有限公司 | A kind of SFP high-frequency line and production method thereof |
| CN103268788A (en) * | 2013-05-22 | 2013-08-28 | 浙江兆龙线缆有限公司 | Cable with multiple pairs of parallel symmetrical axes |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 518118 Wall Industrial Park, Lanjing North Road, Shenzhen Industrial Park, Pingshan New District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Woer Heat-shrinkable Material Co.,Ltd. Patentee after: SHENZHEN WOER SPECIAL CABLE Co.,Ltd. Patentee after: CHANGZHOU WOER HEAT-SHRINKABLE MATERIAL Co.,Ltd. Address before: 518118 Wall Industrial Park, Lanjing North Road, Shenzhen Industrial Park, Pingshan New District, Shenzhen City, Guangdong Province Patentee before: Shenzhen Woer Heat-shrinkable Material Co.,Ltd. Patentee before: SHENZHEN WOER SPECIAL CABLE Co.,Ltd. Patentee before: JINTAN WOER NEW MATERIAL Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210615 Address after: 516229 Desai No.3 Industrial Zone, Zhongkai Avenue, Chenjiang, Huizhou City, Guangdong Province Patentee after: LTK ELECTRIC WIRE (HUIZHOU) Ltd. Patentee after: SHENZHEN WOER SPECIAL CABLE Co.,Ltd. Address before: 518118 Wall Industrial Park, Lanjing North Road, Shenzhen Industrial Park, Pingshan New District, Shenzhen City, Guangdong Province Patentee before: Shenzhen Woer Heat-shrinkable Material Co.,Ltd. Patentee before: SHENZHEN WOER SPECIAL CABLE Co.,Ltd. Patentee before: CHANGZHOU WOER HEAT-SHRINKABLE MATERIAL Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130417 |
|
| CX01 | Expiry of patent term |