CN216749414U - Magnetic suspension bearing signal cable - Google Patents
Magnetic suspension bearing signal cable Download PDFInfo
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- CN216749414U CN216749414U CN202123183298.9U CN202123183298U CN216749414U CN 216749414 U CN216749414 U CN 216749414U CN 202123183298 U CN202123183298 U CN 202123183298U CN 216749414 U CN216749414 U CN 216749414U
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Abstract
The utility model discloses a magnetic suspension bearing signal cable, which comprises a tinned soft copper conductor and a fire-resistant layer, wherein the fire-resistant layer is arranged on the outer side of the tinned soft copper conductor; the irradiation crosslinked polyethylene insulation is arranged on the outer side of the fire-resistant layer; the sub-shield is arranged on the outer side of the irradiation cross-linked polyethylene insulation; the split-phase polyethylene inner guard is arranged on the outer side of the split shield; a main shield disposed outside of the inner split-phase polyethylene jacket; the halogen-free low-smoke high-flame-retardant wrapping tape is arranged on the outer side of the total shield; the fireproof mud is arranged on the outer side of the halogen-free low-smoke high-flame-retardant belting. The magnetic suspension bearing signal cable can improve the overall fireproof and flame-retardant performance of the cable conveniently, has a lower capacitance and a lower dielectric loss angle, is environment-friendly and is beneficial to rescue.
Description
Technical Field
The utility model relates to the technical field of cables, specifically be a magnetic suspension bearing signal cable.
Background
Magnetic levitation refers to a technique of using magnetic force to overcome gravity to levitate an object. With the further and deep research on electronic communication, system control, electrical engineering, electromagnetism and material mechanics, the magnetic suspension technology is widely applied to various fields such as aerospace, rail transit of precise instruments and the like at present;
however, most of the cables used at present are unsatisfactory in fireproof performance, and the safety is affected very much, so that research and development efforts need to be increased to develop a cable for meeting the requirements of magnetic suspension bearings.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a magnetic suspension bearing signal cable to it is unsatisfactory to propose the most fire behavior of current cable in solving above-mentioned background art, influences the problem of security very much.
In order to achieve the above object, the utility model provides a following technical scheme: a magnetic bearing signal cable comprising: a tin-plated soft copper conductor is arranged on the copper conductor,
the fireproof layer is arranged on the outer side of the tinned soft copper conductor;
the irradiation crosslinked polyethylene insulation is arranged on the outer side of the fire-resistant layer;
the sub-shield is arranged on the outer side of the irradiation cross-linked polyethylene insulation;
the split-phase polyethylene inner guard is arranged on the outer side of the split shield;
a main shield disposed outside of the inner split-phase polyethylene jacket;
the halogen-free low-smoke high-flame-retardant wrapping tape is arranged on the outer side of the total shield;
the fireproof mud is arranged on the outer side of the halogen-free low-smoke high-flame-retardant wrapping tape;
the ceramic silicon rubber wrapping tape is arranged on the outer side of the fireproof mud;
the armor is arranged on the outer side of the ceramic silicon rubber wrapping tape;
the halogen-free low-smoke flame-retardant polyolefin sheath is arranged on the outer side of the armor.
By adopting the technical scheme, the cable convenient for finished products has the characteristics of environmental protection, excellent fireproof performance, low capacitance and low dielectric loss angle.
As the utility model discloses a preferred technical scheme, the flame retardant coating chooses for use ceramic mica tape to overlap around the package two-layerly, and every layer of taking the lid rate to be more than or equal to 30%.
By adopting the technical scheme, a ceramic hard shell can be formed conveniently in case of fire, and good effects of fire insulation, heat insulation, temperature insulation and fire blocking are achieved.
As the utility model discloses an optimized technical scheme, the interior protection of adoption crowded package polyethylene of phase separation polyethylene.
By adopting the technical scheme, the split screens are insulated from each other, the inductance in the wire group is reduced, and the mutual interference between the wire pairs is reduced.
As the preferred technical scheme of the utility model, total shielding adopts and weaves the shielding of tinned copper wire, and weaving density is more than or equal to 88%.
By adopting the technical scheme, the external interference on the cable can be conveniently shielded, and the stability and the safety of cable signal transmission are ensured.
As the utility model discloses an optimized technical scheme, there is not steamed low fire-retardant band of cigarette that declines adopts the individual layer to take the lid around the package, and takes the lid rate to be greater than or equal to 15%.
By adopting the technical scheme, the cable is convenient to effectively carry out flame retardance and can be used stably and effectively.
For the utility model discloses an optimized technical scheme, pottery silicon rubber band adopts fire-retardant fire behavior excellent pottery silicon rubber band area.
By adopting the technical scheme, the fireproof and temperature-resistant performance of the cable is convenient to improve.
Compared with the prior art, the beneficial effects of the utility model are that: the magnetic suspension bearing signal cable can conveniently improve the overall fireproof and flame-retardant performance of the cable, has lower capacitance and medium loss angle, is environment-friendly and is beneficial to rescue;
1. the fire-resistant layer adopts a fire-resistant mode of combining a ceramic mica tape, extruded fire-resistant mud, wrapped ceramic silicon rubber tape and the like, so that the finished cable passes a fire-resistant test at 950-1000 ℃ for more than 3 hours and simultaneously passes a mechanical impact test and a water spray test;
2. the insulation thickening process and the small pitch pair twisting have lower capacitance and dielectric loss angle;
3. the cable is made of non-toxic and harmless environment-friendly materials, is safe, environment-friendly and excellent in flame retardant property, does not release harmful gas to cause secondary damage to human bodies under the condition of fire, and is beneficial to rescue.
Drawings
Fig. 1 is the schematic sectional structural view of the present invention.
In the figure: 1. tin-plated soft copper conductors; 2. a refractory layer; 3. insulating irradiation cross-linked polyethylene; 4. shielding; 5. inner protection of polyethylene in phase separation; 6. total shielding; 7. halogen-free low-smoke high-flame-retardant wrapping tape; 8. fire-proof mud; 9. ceramic silicon rubber wrapping belts; 10. armoring; 11. a halogen-free low-smoke flame-retardant polyolefin sheath.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, the technical solution of the present invention is: a magnetic suspension bearing signal cable comprises a tinned soft copper conductor 1, a flame retardant coating 2, a radiation cross-linked polyethylene insulation 3, a branch shield 4, a split-phase polyethylene inner sheath 5, a total shield 6, a halogen-free low-smoke high-flame-retardant wrapping tape 7, fire-proof mud 8, a ceramic silicon rubber wrapping tape 9, an armor 10, a halogen-free low-smoke flame-retardant polyolefin sheath 11, two layers of ceramic mica tapes which are overlapped and wrapped and have a covering rate of more than or equal to 30% and are arranged outside the tinned soft copper conductor 1, a radiation cross-linked polyethylene insulation 3, the branch shield 4, the split-phase polyethylene inner sheath 5, the branch shield 4, the total shield 6, the halogen-free low-smoke high-flame-retardant wrapping tape 7, the ceramic silicon rubber wrapping tape 9, the armor 10, the halogen-free low-smoke flame-retardant polyolefin sheath 11, the flame retardant coating 2, the two layers of the ceramic mica tapes which are overlapped and wrapped and have a covering rate of more than or equal to 30%, and the split-phase polyethylene inner sheath 5, the total shielding 6 is shielded by braided tinned copper wires, the braiding density is larger than or equal to 88%, the halogen-free low-smoke high-flame-retardant wrapping tape 7 is wrapped by a single-layer overlapping cover, the overlapping cover rate is larger than or equal to 15%, the armor 10 is made of a galvanized steel strip, double-layer gaps are wrapped, the gap rate is smaller than or equal to 50%, the fireproof performance of the cable can be effectively improved by the mode, stable, safe and effective transmission of electric energy signals is guaranteed, meanwhile, the cable is more environment-friendly, harmful gas cannot be released to generate secondary harm to a human body in time when a fire disaster occurs, rescue is facilitated, and the content which is not described in detail in the description belongs to the prior art known by professional technicians in the field.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A magnetic bearing signal cable comprising: the tinned soft copper conductor is characterized by further comprising:
the fireproof layer is arranged on the outer side of the tinned soft copper conductor;
the irradiation crosslinked polyethylene insulation is arranged on the outer side of the fire-resistant layer;
the sub-shield is arranged on the outer side of the irradiation cross-linked polyethylene insulation;
the split-phase polyethylene inner guard is arranged on the outer side of the split shield;
a main shield disposed outside of the inner split-phase polyethylene jacket;
the halogen-free low-smoke high-flame-retardant wrapping tape is arranged on the outer side of the total shield;
the fireproof mud is arranged on the outer side of the halogen-free low-smoke high-flame-retardant wrapping tape;
the ceramic silicon rubber wrapping tape is arranged on the outer side of the fireproof mud;
the armor is arranged on the outer side of the ceramic silicon rubber wrapping tape;
the halogen-free low-smoke flame-retardant polyolefin sheath is arranged on the outer side of the armor.
2. The signal cable of the magnetic suspension bearing as claimed in claim 1, wherein the fire-resistant layer is formed by overlapping two layers of ceramic mica tapes, and the overlapping rate of each layer is greater than or equal to 30%.
3. The magnetic bearing signal cable of claim 1, wherein the inner sheath of the phase-separated polyethylene is an extruded inner sheath of polyethylene.
4. The magnetic suspension bearing signal cable of claim 1, wherein the total shielding is braided with tinned copper wire shielding with a braiding density of 88% or more.
5. The magnetic suspension bearing signal cable of claim 1, wherein the halogen-free low-smoke high-flame-retardant wrapping tape is wrapped by a single-layer overlapping covering, and the overlapping covering rate is more than or equal to 15%.
6. The magnetic bearing signal cable of claim 1, wherein the armor is made of galvanized steel tape, and is wrapped with double layers of gap wrapping, and the gap rate is less than or equal to 50%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123183298.9U CN216749414U (en) | 2021-12-17 | 2021-12-17 | Magnetic suspension bearing signal cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123183298.9U CN216749414U (en) | 2021-12-17 | 2021-12-17 | Magnetic suspension bearing signal cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216749414U true CN216749414U (en) | 2022-06-14 |
Family
ID=81935223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123183298.9U Active CN216749414U (en) | 2021-12-17 | 2021-12-17 | Magnetic suspension bearing signal cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216749414U (en) |
-
2021
- 2021-12-17 CN CN202123183298.9U patent/CN216749414U/en active Active
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