CN211578452U - Three-core composite cable - Google Patents
Three-core composite cable Download PDFInfo
- Publication number
- CN211578452U CN211578452U CN202020624320.5U CN202020624320U CN211578452U CN 211578452 U CN211578452 U CN 211578452U CN 202020624320 U CN202020624320 U CN 202020624320U CN 211578452 U CN211578452 U CN 211578452U
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- line
- power
- lines
- feedback
- spiral
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- Expired - Fee Related
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Abstract
The utility model relates to a three-core composite cable, three power line (5) have been arranged in three-core composite cable, 6,7), wherein, two are power supply line (6,7), one is earth connection (5), three power line (5, 6,7) are equilateral triangle and arrange, and the distance at a distance of at least power line diameter, the communication line includes many pairs, every including control line and feedback line, a plurality of control line are the heliciform winding each other and form spiral control group (9) together, a plurality of feedback line are the heliciform winding each other and form spiral feedback group (8) together, arrange in the mid point outside of a power supply line (6) and earth connection (5) line spiral control group (9), spiral feedback group (8) are arranged in another power supply line (7) and earth connection (5) line mid point outside. This arrangement minimizes signal interference between the communication line and the power line.
Description
Technical Field
The utility model relates to a cable, concretely relates to three-core composite cable.
Background
With the development of communication technology, cables compounded by power lines and communication lines in office places and residential buildings become standard configurations, especially in wired and wireless broadcasting stations, communication facilities used inside the office places and the residential buildings are more, and numerous cables such as telephone lines, power supply lines, network lines, optical cables, wired line-of-sight lines and the like are complicated, so that the cables in the buildings are disordered, potential safety hazards exist, the cables are difficult to arrange, and the maintenance difficulty is high. One solution is to arrange both power lines and communication lines in a single cable, as shown in fig. 1, taking a three-core cable as an example, the three-core cable has three power lines arranged in a straight line, two of which are power supply lines, namely power line 1, power line 3, and one of which is ground line 2, and communication line 4 is arranged inside the cable. The arrangement causes signal interference and fluctuation between the power line and the communication line, which causes unstable signals of the equipment and influences user experience.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in, to prior art's above-mentioned defect, a three-core composite cable that can effectively reduce signal interference between power line and the communication line is provided.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a three-core composite cable, three power lines have been arranged in the three-core composite cable, wherein, two are the power supply line, one is the earth connection, three power lines are equilateral triangle and arrange, and apart from the distance of at least a power line diameter, the communication line includes many pairs, every pair includes control line and feedback line, a plurality of control lines are the heliciform winding each other and form spiral control group together, a plurality of feedback lines are the heliciform winding each other and form spiral feedback group together, spiral control group arranges in the midpoint outside of a power supply line and earth connection line, spiral feedback group arranges in another power supply line and earth connection line midpoint outside.
The utility model discloses a further preferred scheme is: the power line is coated with an insulating layer, and the communication line is coated with an insulating layer.
The beneficial effects of the utility model reside in that, a plurality of control lines are the heliciform winding each other and form the spiral control group together, and a plurality of feedback lines are the heliciform winding each other and form the spiral feedback group together, and the communication line can reduce electromagnetic coupling and interference each other through spiral winding each other. The spiral control line group is arranged outside the middle point of the connecting line of one power supply line and the grounding line, and the spiral feedback line group is arranged outside the middle point of the connecting line of the other power supply line and the grounding line.
Drawings
The invention will be further explained with reference to the drawings and examples, wherein:
fig. 1 is a schematic cross-sectional view of a prior art three-core composite cable.
Fig. 2 is a schematic cross-sectional view of the three-core composite cable of the present invention.
Detailed Description
The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
Fig. 2 shows a schematic cross-sectional view of the three-core composite cable of the present embodiment.
Three power lines are arranged in the three-core composite cable, wherein two power lines are power supply lines and can provide 220V voltage for example, and one power line is a grounding line. The three power lines are arranged in a substantially equilateral triangle and are spaced apart by a distance, the distance being the diameter of at least one power line, or greater. The communication line includes a plurality of pairs depending on the use environment. Each pair of communication lines includes a plurality of control lines and a plurality of feedback lines, the plurality of control lines being spirally wound around each other to form a spiral control line group 9, the plurality of feedback lines being spirally wound around each other to form a spiral feedback line group 8, the spiral control line group 9 being disposed outside a midpoint of a connection (shown by a dotted line in fig. 2) between one of the power supply lines 6 and the ground line 5, and the spiral feedback line group 8 being disposed outside a midpoint of a connection (shown by a dotted line in fig. 2) between the other one of the power supply lines 7 and the ground line 5. The power line is coated with an insulating layer, and the communication line is coated with an insulating layer. The power supply wire, the grounding wire and the communication wire can be coated with insulating layers with different colors so as to be distinguished easily. For example, the color of the insulating protective layer of the power line 5 is set to brown, the color of the insulating protective layer of the power line 6 is set to blue, and the color of the insulating protective layer of the power line 7 is set to yellow-green. The communication lines are set to white, blue, green and yellow, respectively.
The plurality of control lines are spirally wound together to form a spiral control line group, the plurality of feedback lines are spirally wound together to form a spiral feedback line group, and the communication lines are spirally wound together to reduce electromagnetic coupling and interference. The spiral control line group is arranged outside the middle point of the connecting line of one power supply line and the grounding line, and the spiral feedback line group is arranged outside the middle point of the connecting line of the other power supply line and the grounding line.
Claims (2)
1. A three-core composite cable, in which three power lines are arranged, two of which are power supply lines (6,7) and one of which is a ground line (5), is characterized in that,
the three power lines are arranged in an equilateral triangle and are separated from each other by the diameter of at least one power line,
the communication line comprises a plurality of pairs, each pair comprises a control line and a feedback line, a plurality of control lines are spirally wound together to form a spiral control line group (9), a plurality of feedback lines are spirally wound together to form a spiral feedback line group (8),
the spiral control line group (9) is arranged outside the midpoint of the connection line of one power supply line (6) and the grounding line (5), and the spiral feedback line group (8) is arranged outside the midpoint of the connection line of the other power supply line (7) and the grounding line (5).
2. The three-core composite cable according to claim 1, wherein the power line is coated with an insulating layer and the communication line is coated with an insulating layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020624320.5U CN211578452U (en) | 2020-04-22 | 2020-04-22 | Three-core composite cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020624320.5U CN211578452U (en) | 2020-04-22 | 2020-04-22 | Three-core composite cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211578452U true CN211578452U (en) | 2020-09-25 |
Family
ID=72527895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020624320.5U Expired - Fee Related CN211578452U (en) | 2020-04-22 | 2020-04-22 | Three-core composite cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211578452U (en) |
-
2020
- 2020-04-22 CN CN202020624320.5U patent/CN211578452U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200925 Termination date: 20210422 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |