CN212750486U - Flame-retardant shielded cable - Google Patents
Flame-retardant shielded cable Download PDFInfo
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- CN212750486U CN212750486U CN202021689002.3U CN202021689002U CN212750486U CN 212750486 U CN212750486 U CN 212750486U CN 202021689002 U CN202021689002 U CN 202021689002U CN 212750486 U CN212750486 U CN 212750486U
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Abstract
The utility model relates to a fire-retardant shielded cable, include: the outermost layer of the outer core wire and the inner core wire is an insulating outer sheath; the inner core wire comprises four pairs of inner core wires, each pair of inner core wires is twisted, the four pairs of inner core wires are twisted, the center of each pair of inner core wires is a bone line, a first shielding layer is coated outside each inner core wire, a second shielding layer is coated after each pair of wires are twisted, a third shielding layer is coated outside each pair of inner core wires, and a filling layer is arranged between each third shielding layer and the second shielding layer; the third shielding layer is externally provided with a plurality of circumferentially arranged outer core wires, each outer core wire is externally provided with an outer core shielding layer, the circumferentially arranged outer core wires are externally provided with a wear-resistant outer sheath, and a fourth shielding layer and a flame-retardant layer are arranged between the outer core wires and the wear-resistant outer sheath. The utility model discloses have good electrical property and mechanical properties, simple structure, it is good to shield flame retardant efficiency.
Description
Technical Field
The utility model relates to a shielded cable, concretely relates to industrial control equipment is with fire-retardant shielded cable that has good electrical property and mechanical properties, simple structure, shielding and flame retardant efficiency are good.
Background
At present, the industrial control automation requirements of domestic markets are uneven in cable quality, so that the requirements of industrial control equipment cannot be met due to low cable quality, and the development of the industrial control industry is seriously influenced.
SUMMERY OF THE UTILITY MODEL
In view of the above, an object of the present invention is to provide a flame-retardant shielding cable for industrial control equipment, which has good electrical and mechanical properties, simple structure, and good shielding and flame-retardant effects.
The utility model discloses a solve above-mentioned technical problem through following technical scheme: a flame retardant shielded electrical cable comprising: the outermost layer of the outer core wire and the inner core wire is an insulating outer sheath.
The inner core wire comprises four pairs of inner core wires, each pair of inner core wires is twisted, the four pairs of inner core wires are twisted, a bone line is arranged at the center of each pair of inner core wires, a first shielding layer is coated outside each inner core wire, and a second shielding layer is coated after each pair of wires are twisted.
A third shielding layer is coated outside the four pairs of inner core wires, and a filling layer is arranged between the third shielding layer and the second shielding layer; the third shielding layer is externally provided with a plurality of circumferentially arranged outer core wires, each outer core wire is externally provided with an outer core shielding layer, the circumferentially arranged outer core wires are externally provided with a wear-resistant outer sheath, and a fourth shielding layer and a flame-retardant layer are arranged between the outer core wires and the wear-resistant outer sheath.
In a specific embodiment of the present invention, the four pairs of inner conductors are twisted together to form a cable core after being wrapped by the first shielding layer and the second shielding layer.
In a specific embodiment of the present invention, the diameter of the bone line is in the range of 1.0-2.0 mm.
In a specific embodiment of the present invention, the thickness of the first shielding layer ranges from 1.0 mm to 1.5 mm; the thickness range of the second shielding layer is 1.2-1.8 mm; the thickness range of the third shielding layer is 1.5-2.0 mm; the thickness of the fourth shielding layer ranges from 1.5mm to 2.0 mm.
In the specific implementation example of the utility model, the filling layer is red phosphorus material composite on glass fiber yarn, and red phosphorus and glass fiber yarn evenly fill in the inside of third shielding layer and the outside of second shielding layer.
In a specific embodiment of the present invention, the thickness of the wear-resistant outer sheath is in a range of 2.0-4.0 mm.
In a specific embodiment of the present invention, the number range of the outer core wires is: 15-20, evenly distributed between the third shielding layer and the fourth shielding layer.
In the embodiment of the present invention, the first shielding layer, the second shielding layer, the third shielding layer and the fourth shielding layer are all shielding layers braided by using alloy monofilaments.
In the embodiment of the present invention, the flame retardant layer is made of flame retardant low smoke halogen-free polyolefin material.
In the specific implementation example of the utility model, the thickness of the flame retardant layer is 1/2-1/3 of the thickness of the wear-resisting outer sheath.
In a specific embodiment of the present invention, the wear-resistant outer sheath is made of wear-resistant rubber.
The utility model discloses an actively advance the effect and lie in: the utility model provides a fire-retardant shielded cable has good electrical property and mechanical properties, simple structure, and shielding and flame retardant efficiency are good.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
The utility model discloses the name that well reference numeral corresponds:
the cable comprises an inner core wire 1, a first shielding layer 2, a second shielding layer 3, a filling layer 4, a third shielding layer 5, an outer core wire 6, an outer core shielding layer 7, a fourth shielding layer 8, a flame-retardant layer 9, a wear-resistant outer sheath 10 and a bone line 11.
Detailed Description
The following provides a preferred embodiment of the present invention with reference to the accompanying drawings to explain the technical solutions of the present invention in detail.
Fig. 1 is a schematic view of the overall structure of the present invention. As shown in fig. 1, the utility model provides a pair of flame-retardant shielded cable, this flame-retardant shielded cable includes: the outermost layer of the outer core wire and the inner core wire is an insulating outer sheath.
The inner core wire comprises four pairs of inner core wires 1, each pair of inner core wires 1 is twisted, the four pairs of inner core wires are twisted, a bone line 11 is arranged at the center of each pair of inner core wires, a first shielding layer 2 is coated outside each inner core wire, and a second shielding layer 3 is coated after each pair of wires are twisted.
A third shielding layer 5 is coated outside the four pairs of inner core wires, and a filling layer 4 is arranged between the third shielding layer 5 and the second shielding layer 3; the third shielding layer 5 is externally provided with a plurality of circumferentially arranged outer core wires 6, each outer core wire 6 is externally provided with an outer core shielding layer 7, the circumferentially arranged outer core wires 6 are externally provided with a wear-resistant outer sheath 10, and a fourth shielding layer 8 and a flame-retardant layer 9 are arranged between the outer core wires 6 and the wear-resistant outer sheath 10.
The four pairs of inner core wires 1 are twisted together to form a cable core after being coated with the first shielding layer 2 and the second shielding layer 3.
In the specific implementation process of the utility model, the diameter range of the bone line is 1.0-2.0mm, and other parameters can be selected according to specific requirements, and in addition, the number of the bone line 2 can be increased according to the requirements. The thickness range of the first shielding layer is 1.0-1.5 mm; the thickness range of the second shielding layer is 1.2-1.8 mm; the thickness range of the third shielding layer is 1.5-2.0 mm; the thickness range of the fourth shielding layer 8 is 1.5-2.0 mm; the thickness range of the wear-resistant outer sheath 10 is 2.0-4.0 mm; the above parameters can be selected according to specific requirements; the shielding layer can effectively prevent the interference of the outside to the internal signal.
The utility model provides a filling layer 4 is red phosphorus material complex on glass fiber silk, and red phosphorus and glass fiber silk evenly fill in the inside of third shielding layer 5 and the outside of second shielding layer 3.
The utility model provides an outer core wire's radical scope generally selects to be: 15-20, evenly distributed between the third shielding layer 5 and the fourth shielding layer 8.
During processing, the first shielding layer, the second shielding layer, the third shielding layer and the fourth shielding layer are all shielding layers woven by alloy monofilaments.
The flame-retardant layer 9 is made of flame-retardant low-smoke halogen-free polyolefin material. The thickness of the flame retardant layer 9 is 1/2-1/3 of the wear resistant outer sheath 10.
The number range of the outer core wires 6 is: 15-20, evenly distributed between the second shield layer 4 and the third shield layer 5. In the specific implementation process of the utility model, each inner core wire 1 is formed by twisting 15-25 twisted alloy conductors.
In order to further expand the application range of the present invention, a flame retardant layer may be further disposed between the third shielding layer 5 and the second shielding layer 3. The thickness of the flame-retardant layer can be selected according to requirements, and can be generally selected to be 1.5-1 mm.
When in processing, the thickness range of the wear-resistant outer sheath 10 can be selected to be 2.0-4.0mm, and the wear-resistant outer sheath 10 can be selected to be an outer sheath with other thickness according to specific requirements. The outer sheath can be made of wear-resistant rubber or thermoplastic elastomer polyurethane with high mechanical property. The polymer material can resist certain mechanical external force, and has excellent performances of environmental protection, flame retardance, wear resistance, water resistance and the like.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to illustrate the principles of the invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined by the appended claims and their equivalents.
Claims (10)
1. A flame retardant shielded cable characterized by: the flame-retardant shielded cable includes: the outermost layer of the outer core wire and the inner core wire is an insulating outer sheath;
the inner core wire comprises four pairs of inner core wires, each pair of inner core wires is twisted, the four pairs of inner core wires are twisted, the center of the four pairs of inner core wires is a bone line, each inner core wire is coated with a first shielding layer, each pair of wires is coated with a second shielding layer after being twisted,
a third shielding layer is coated outside the four pairs of inner core wires, and a filling layer is arranged between the third shielding layer and the second shielding layer; the third shielding layer is externally provided with a plurality of circumferentially arranged outer core wires, each outer core wire is externally provided with an outer core shielding layer, the circumferentially arranged outer core wires are externally provided with a wear-resistant outer sheath, and a fourth shielding layer and a flame-retardant layer are arranged between the outer core wires and the wear-resistant outer sheath.
2. The flame retardant shielded cable of claim 1, wherein: the four pairs of inner conductors are twisted together to form a cable core after being coated with the first shielding layer and the second shielding layer.
3. The flame retardant shielded cable of claim 1, wherein: the diameter range of the bone line is 1.0-2.0 mm.
4. The flame retardant shielded cable of claim 1, wherein: the thickness range of the first shielding layer is 1.0-1.5 mm; the thickness range of the second shielding layer is 1.2-1.8 mm; the thickness range of the third shielding layer is 1.5-2.0 mm; the thickness of the fourth shielding layer ranges from 1.5mm to 2.0 mm.
5. The flame retardant shielded cable of claim 1, wherein: the filling layer is formed by compounding red phosphorus materials on the glass fiber yarns, and the red phosphorus and the glass fiber yarns are uniformly filled in the third shielding layer and on the outer side of the second shielding layer.
6. The flame retardant shielded cable of claim 1, wherein: the thickness range of the wear-resistant outer sheath is 2.0-4.0 mm.
7. The flame retardant shielded cable of claim 1, wherein: the number range of the outer core wires is as follows: 15-20, evenly distributed between the third shielding layer and the fourth shielding layer.
8. The flame retardant shielded cable of claim 1, wherein: the first shielding layer, the second shielding layer, the third shielding layer and the fourth shielding layer are all shielding layers woven by alloy monofilaments.
9. The flame retardant shielded cable of claim 1, wherein: the flame-retardant layer is made of flame-retardant low-smoke halogen-free polyolefin material.
10. The flame retardant shielded cable of claim 1, wherein: the thickness of the flame-retardant layer is 1/2-1/3 of the thickness of the wear-resistant outer sheath, and the wear-resistant outer sheath is wear-resistant rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021689002.3U CN212750486U (en) | 2020-08-13 | 2020-08-13 | Flame-retardant shielded cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021689002.3U CN212750486U (en) | 2020-08-13 | 2020-08-13 | Flame-retardant shielded cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212750486U true CN212750486U (en) | 2021-03-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021689002.3U Active CN212750486U (en) | 2020-08-13 | 2020-08-13 | Flame-retardant shielded cable |
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| CN (1) | CN212750486U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114822936A (en) * | 2022-04-27 | 2022-07-29 | 浙江三科线缆股份有限公司 | Drag chain cable and forming process thereof |
-
2020
- 2020-08-13 CN CN202021689002.3U patent/CN212750486U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114822936A (en) * | 2022-04-27 | 2022-07-29 | 浙江三科线缆股份有限公司 | Drag chain cable and forming process thereof |
| CN114822936B (en) * | 2022-04-27 | 2024-03-05 | 浙江三科线缆股份有限公司 | Drag chain cable and forming process thereof |
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Address after: 201402 no.875 Puwei Road, Fengxian District, Shanghai Patentee after: Jiukai Special Cable (Shanghai) Co.,Ltd. Address before: 201402 no.875 Puwei Road, Fengxian District, Shanghai Patentee before: SHANGHAI JIUKAI WIRE AND CABLE Co.,Ltd. |