CN201117362Y - Foamed cover insulated structure cable - Google Patents
Foamed cover insulated structure cable Download PDFInfo
- Publication number
- CN201117362Y CN201117362Y CNU2007200973162U CN200720097316U CN201117362Y CN 201117362 Y CN201117362 Y CN 201117362Y CN U2007200973162 U CNU2007200973162 U CN U2007200973162U CN 200720097316 U CN200720097316 U CN 200720097316U CN 201117362 Y CN201117362 Y CN 201117362Y
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- China
- Prior art keywords
- insulation
- cable
- polyethylene
- foam
- skin
- 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 - Fee Related
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Abstract
The utility model belongs to a signal transmission cable, in particular to a cable with a foam-skin insulation structure. The utility model consists of an outer sheath, a shielding layer, a grounding line, a lapping belt, a polyethylene insulator, a conductor and a filling core. The utility model is characterized in that a foaming polyethylene insulation cortex is arranged between the polyethylene insulator and the conductor, and a foam-skin insulation structure is formed. The beneficial effects of the utility model are that the insulation of the cable adopts foam-skin structure, and the insulation is mainly the foaming polyethylene insulation, which makes the thickness of foam-skin insulation less than the polyethylene solid structure under the condition with the same electrical properties. And while a lot of air is in the foam-skin structure, which makes the quality of the cable much better than the polyethylene insulation. And therefore in aspects of signal stability, quality and volume, the cable with the foam-skin structure is better than the cable made of single polyethylene insulation. And so, the properties of the cable with the foam-skin insulation are more stable, the quality is lighter and the volume is smaller.
Description
Technical field
The utility model belongs to signal-transmitting cable, particularly a kind of bubble skin insulation system cable.
Background technology
Cable is as the signal connecting line between each electric appliances, instrument and the automatics, is mainly used in various effects such as signal transmission in the occasions such as control, the chain loop of monitoring and protection circuit and transfer control signal.It is widely used in important economic departments such as various industrial and mining enterprises, communications and transportation, in the signal controlling as power plant, transformer station, petrochemical industry and various precision instruments.And at present for security control and signal transmission, the particularly important communication cable of its function mainly uses polyethylene as insulation, but exists signal attenuation big in actual use, jitter, and the thick whole cable size defective bigger than normal that causes insulate.Therefore, along with the progress of science and technology, the client is to the stable of transmission signals and lightly proposed higher requirement again.Letter is waited to develop a kind of to reduce the decay of cable transmission signal, the transmission signals cable of raising steady signal transmission in the industry.
The utility model content
The purpose of this utility model is intended to overcome above-mentioned defective, a kind of bubble skin insulation system cable is provided, it is effectively by changing the project organization and the insulating material of cable, insulation with the bubble skin structure replaces the solid insulation of polyethylene, to reduce the decay of cable transmission signal, improve the stability of transmission signals, reduce the insulation thickness of cable, the external diameter of cable and deadweight are reduced greatly.
For realizing that the technical scheme that the purpose of this utility model adopted is: a kind of bubble skin insulation system cable, it has oversheath, screen, earth connection, twining package tape, polyethylene insulation body, conductor and fills out core, it is characterized in that: be provided with polyethylene foamed and insulate cortex and form the insulation of bubble skin structure between polyethylene insulation body and conductor.
Above-mentioned polyethylene foamed insulated hull layer thickness is directly proportional with the signal performance that is transmitted.
The utility model has following beneficial effect under the configuration of excellent structure: the bubble skin structure is adopted in the insulation of cable, and insulation is based on the polyethylene foamed insulation, so just make that insulation is more stable in air, and the dielectric constant of air is far smaller than polyethylene, make like this under the condition of same electrical property, the thickness of bubble skin insulation is littler than polyethylene solid construction, and in the bubble skin structure more air is arranged, and this makes aspect quality more excellent than polyethylene insulation again.Thereby make bubble skin structure cable at signal stabilization, quality, volume all is better than the cable of single polyethylene insulation.Therefore, the cable performance of bubble skin insulation is more stable, and quality is lighter and handier, and volume is littler.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of existing product.
Embodiment
Below in conjunction with embodiment and preferred embodiment structure of the present utility model is further specified.
Embodiment is an example to adopt two pairs of 22AWG communication cables, see also shown in Figure 1: a kind of bubble skin insulation system cable, it has oversheath 1, oversheath inner ring to be provided with screen 2, be provided with earth connection 3, twining package tape 4, polyethylene insulation body 5, the two pairs of 22AWG connection conductors 7 and two in the screen and fill out core 8, have additional polyethylene foamed insulation cortex 6 and form the insulation of bubble skin structure at polyethylene insulation body 5 and 7 of conductors.Its cable is under the condition of same electrical property, the thickness of bubble skin insulation is littler than single polyethylene solid construction insulation, make its existing product (see figure 2) external diameter be about 20.0mm, weight is about 240kg/km, and to be reduced to product external diameter of the present utility model be 12.0mm, and weight is 100kg/km.And more air is arranged in the bubble skin structure, this makes aspect quality more excellent than polyethylene insulation again.Thereby make bubble skin structure cable at signal stabilization, quality, volume all is better than the cable of single polyethylene insulation.Therefore, the cable performance of bubble skin insulation is more stable, and quality is lighter and handier, and volume is littler.
Although the utility model has been carried out special description with reference to embodiment, embodiment described above is illustrative and not restrictive, under the situation that does not break away from spirit and scope of the present utility model, all variations and modification are all within scope of the present utility model.
Claims (2)
1. one kind is steeped skin insulation system cable, it has oversheath, screen, earth connection, twining package tape, polyethylene insulation body, conductor and fills out core, it is characterized in that: be provided with polyethylene foamed and insulate cortex and form the insulation of bubble skin structure between polyethylene insulation body and conductor.
2. bubble skin insulation system cable according to claim 1 is characterized in that: above-mentioned polyethylene foamed insulated hull layer thickness is directly proportional with the signal performance that is transmitted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200973162U CN201117362Y (en) | 2007-08-31 | 2007-08-31 | Foamed cover insulated structure cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200973162U CN201117362Y (en) | 2007-08-31 | 2007-08-31 | Foamed cover insulated structure cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201117362Y true CN201117362Y (en) | 2008-09-17 |
Family
ID=39991940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200973162U Expired - Fee Related CN201117362Y (en) | 2007-08-31 | 2007-08-31 | Foamed cover insulated structure cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201117362Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103268783A (en) * | 2013-05-22 | 2013-08-28 | 浙江兆龙线缆有限公司 | High definition audio and video transmission line of mobile terminal |
-
2007
- 2007-08-31 CN CNU2007200973162U patent/CN201117362Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103268783A (en) * | 2013-05-22 | 2013-08-28 | 浙江兆龙线缆有限公司 | High definition audio and video transmission line of mobile terminal |
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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: TIANJIN DELTA SCIENCE AND TECHNOLOGY GROUP CO., LT Free format text: FORMER NAME: TIANJIN DELTA SCIENCE AND TECHNOLOGY GROUP CO. |
|
| CP03 | Change of name, title or address |
Address after: Road, River Bridge on the north side of the Beijing Tianjin Highway in Beichen Shuangjiang District of Tianjin City zip code: 300400 Patentee after: Tianjin Delta Science & Technology Group Co., Ltd. Address before: Road, River Bridge on the north side of the Beijing Tianjin Highway in Beichen Shuangjiang District of Tianjin City zip code: 300400 Patentee before: Tianjin Delta Science & Technology Group Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080917 Termination date: 20120831 |