CN201281981Y - Bus cable - Google Patents
Bus cable Download PDFInfo
- Publication number
- CN201281981Y CN201281981Y CNU2008200405987U CN200820040598U CN201281981Y CN 201281981 Y CN201281981 Y CN 201281981Y CN U2008200405987 U CNU2008200405987 U CN U2008200405987U CN 200820040598 U CN200820040598 U CN 200820040598U CN 201281981 Y CN201281981 Y CN 201281981Y
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- CN
- China
- Prior art keywords
- layer
- cable
- bus cable
- shielding layer
- bus
- 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
The utility model relates to the technical field of cables, in particular to a field-bus bus cable with high transmission performance. The middle part of the bus cable is twisted through conductors and a plurality of epibolic conductor insulating layers; the middle part is wound by a winding shielding layer; the winding shielding layer is covered with a sheath layer on the outermost layer; and a strand of leakage lines are inserted between the winding shielding layer and the sheath layer. The filed-bus cable with a multistrand single line group structure is combined into a center inner part of the cable; a filling layer, a PET layer and a layer sheath layer are covered outside thereof; therefore, a field-bus cable with a multiline group structure is formed. The utility model can be favorable for reducing and simplifying the manufacturing procedures and the technology of cables, simplifying the structure of the cable, reducing the manufacturing cost, decreasing the size of the cable, and reducing the cost of matching equipment of the system.
Description
Technical field
The utility model relates to the cable technology field, especially relates to the bus cable of a kind of fieldbus with the high-transmission performance.
Background technology
Traditional control system, as DCS, PLC dispatch control system do not have all-digital communication, interoperable, high degree of dispersion, unique advantage such as opening is good, reliability is high, investment and maintenance cost are low.
Being proved to be in the advanced person in DCS epoch control can be for enterprise obtains huge economic benefit, but this control system relatively seal, shielding layer structure has very big influence to cable data, technical indicator such as characteristic impedance and decay particularly, even cause and exceed standard.The structure that the instrument cable of general DCS system adopts is: the wrapped one deck non-absorbent material in the stranded back of line group, wrapped again layer of metal mask tape is carried out stranding at last.
Summary of the invention
The purpose of this utility model is the above-mentioned shortcoming at prior art, and the bus cable of a kind of fieldbus with the high-transmission performance is provided.
The technical scheme that realizes the utility model above-mentioned purpose is: its core of bus cable is stranded the forming of conductor of a plurality of outsourcing insulating layer of conductor, core is wrapped by lapped shielding layer, there is a restrictive coating that lapped shielding layer is encased at the bus cable outermost layer, between lapped shielding layer and restrictive coating, is embedded with one leaky line.
Lapped shielding layer adopts compound copper-plastics band or plastic-aluminum combined carrying material to make.
Revealing line adopts copper or tin-coated copper conductor material to make.
Adopt the synthetic cable center of multiply single line group configuration bus cable group inside, be surrounded by packed layer, pet layer and big restrictive coating in its outside, form multi-thread group of configuration bus cable.
The little restrictive coating of single line group bus cable is made for the PET material.
The utility model has the advantages that: adopted special group strand shielding construction, can help reducing simplification cables manufacturing procedure technology, simplify the structure of cable, reduce production cost, reduce the size of cable, reduce the corollary equipment cost of system, make the characteristic impedance (fr=31.25kHz) of cable in the scope of 100 ± 20% Ω, decay (1.25fr=39kHz)≤3dB/km is to the unbalance capacity≤2nF/km of screen.Mutual capacitance (1kHz)≤115pF/m more is applicable at intelligent measure and control appliance, and the communication link of the digitlization between automation and the display system, two-way, multiple spot.
Description of drawings
Fig. 1 is the utility model single line group configuration bus construction of cable schematic diagram;
Fig. 2 is the multi-thread group of configuration bus construction of cable of a utility model schematic diagram;
Among Fig. 1,1 is conductor, and 2 is insulating layer of conductor, and 3 is lapped shielding layer, and 4 for revealing line, and 5 is restrictive coating.
Among Fig. 2,1 is conductor, and 2 is insulating layer of conductor, and 3 is lapped shielding layer, and 4 for revealing line, and 5 is little restrictive coating, and 6 is packed layer, and 7 is pet layer, and 8 is big restrictive coating.
Embodiment
Below in conjunction with description of drawings embodiment of the present utility model.
See figures.1.and.2, its core of bus cable is conductor 1 stranded the forming of a plurality of outsourcing insulating layer of conductor 2, core is wrapped by lapped shielding layer 3, there is a restrictive coating 5 that lapped shielding layer 3 is encased at the bus cable outermost layer, between lapped shielding layer and restrictive coating, is embedded with one leaky line 4.
Lapped shielding layer 3 adopts compound copper-plastics band or plastic-aluminum combined carrying material to make.
Revealing line 4 adopts copper or tin-coated copper conductor material to make.
Adopt the synthetic cable center of multiply single line group configuration bus cable group inside, be surrounded by packed layer 6, pet layer 7 and big restrictive coating 8 in its outside, form multi-thread group of configuration bus cable.
The little restrictive coating 5 of single line group bus cable is made for the PET material.
The foregoing description is to be used to illustrate the utility model, rather than to restriction of the present utility model, to the improvement of pressing method of the present invention, all belongs to the claimed scope of the utility model under design prerequisite of the present utility model.
Claims (3)
1. bus cable, it is characterized in that: to be that the conductor of a plurality of outsourcing insulating layer of conductor is stranded form its core, core is wrapped by lapped shielding layer, there is a restrictive coating that lapped shielding layer is encased at the bus cable outermost layer, between lapped shielding layer and restrictive coating, is embedded with one leaky line.
2. bus cable according to claim 1 is characterized in that: lapped shielding layer adopts compound copper-plastics band or plastic-aluminum combined carrying material to make.
3. bus cable according to claim 1 is characterized in that: reveal line and adopt copper or tin-coated copper conductor material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200405987U CN201281981Y (en) | 2008-07-14 | 2008-07-14 | Bus cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200405987U CN201281981Y (en) | 2008-07-14 | 2008-07-14 | Bus cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201281981Y true CN201281981Y (en) | 2009-07-29 |
Family
ID=40928848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200405987U Expired - Lifetime CN201281981Y (en) | 2008-07-14 | 2008-07-14 | Bus cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201281981Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102509574A (en) * | 2011-11-04 | 2012-06-20 | 贸联电子(昆山)有限公司 | High-speed differential twisted pair structure |
| CN107643476A (en) * | 2017-08-01 | 2018-01-30 | 河南中烟工业有限责任公司 | A kind of Profibus insulated bus performance test methods based on virtual instrument technique |
-
2008
- 2008-07-14 CN CNU2008200405987U patent/CN201281981Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102509574A (en) * | 2011-11-04 | 2012-06-20 | 贸联电子(昆山)有限公司 | High-speed differential twisted pair structure |
| CN102509574B (en) * | 2011-11-04 | 2014-07-16 | 贸联电子(昆山)有限公司 | High-speed differential twisted pair structure |
| CN107643476A (en) * | 2017-08-01 | 2018-01-30 | 河南中烟工业有限责任公司 | A kind of Profibus insulated bus performance test methods based on virtual instrument technique |
| CN107643476B (en) * | 2017-08-01 | 2020-05-22 | 河南中烟工业有限责任公司 | Profibus bus insulation performance testing method based on virtual instrument technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHANGZHOU BAYI CABLE CO., LTD. Free format text: FORMER NAME: ZHENGZHOU BAYI CABLE CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 213031, No. 8, science Avenue, Xinbei Electronic Science and Technology Industrial Park, Jiangsu, Changzhou Patentee after: Changzhou Bayi Cable Co., Ltd. Address before: 213031, No. 8, science Avenue, Xinbei Electronic Science and Technology Industrial Park, Jiangsu, Changzhou Patentee before: Zhengzhou Bayi Cable Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090729 |