Digital communication cable and ship
By employing a double-layer fire-resistant layer and a shielding layer structure in digital communication cables, the problems of cable airtightness and fire resistance are solved, enabling safe operation under fire conditions and preventing the spread of harmful gases.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-28
- Publication Date
- 2026-03-24
AI Technical Summary
Existing digital communication cables have problems with poor airtightness and fire resistance, and cannot effectively prevent harmful gases from spreading to safe areas through the gaps in the cable core, and cannot guarantee normal operation under fire conditions.
It adopts a double-layer fire-resistant structure, including ceramicized silicone rubber resin and mica tape, combined with aluminum-plastic tape and copper-plated tin copper wire shielding layer, and fills the space between the sub-shielding layer and the main shielding layer with water-blocking adhesive to form a longitudinal airtight structure.
It improves the fire resistance and longitudinal airtightness of the cable, prevents the spread of harmful gases, ensures the normal operation of the cable under fire conditions, and guarantees the safe evacuation of personnel.
Smart Images
Figure CN224036118U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to cable technical field especially relates to a kind of digital communication cable and ship. BACKGROUND
[0002] With the continuous improvement of the degree of automation of modernization warship, traditional analog communication cable has been unable to meet the high-speed, large capacity, high-precision digital signal transmission requirements, and the use of marine digital communication cable is increasing to realize the rapid and accurate transmission of signals and ensure the normal operation of each system of the ship. Safety is very important during ship operation, such as the presence of harmful gases in non-safety areas. If conventional cables are used, harmful gases can spread to the safe area through the cable core gap, affecting personnel safety. In the event of a fire, the cable must be able to ensure operation until personnel are safely evacuated.
[0003] Therefore, how to realize the longitudinal air tightness of the cable core, prevent harmful gases from spreading to the safe area through the cable core gap, and provide protection for personnel evacuation for a period of time under fire conditions is a problem that needs to be solved at present. SUMMARY
[0004] The utility model provides a kind of digital communication cable and ship to solve the defects of poor air tightness and poor fire resistance of digital communication cable in prior art.
[0005] The utility model provides a kind of digital communication cable, comprising:
[0006] a conductor;
[0007] an insulating layer wrapped outside the conductor;
[0008] a first fire-resistant layer wrapped outside the insulating layer;
[0009] a second fire-resistant layer wrapped outside the first fire-resistant layer;
[0010] a partial shielding layer located outside the second fire-resistant layer;
[0011] a total shielding layer located outside the partial shielding layer, and the total shielding layer is sealed by glue;
[0012] a filling layer filled between the partial shielding layer and the total shielding layer.
[0013] According to the digital communication cable provided by the utility model, the first fire-resistant layer comprises:
[0014] a ceramicized silicone rubber resin coated on the outer surface of the insulating layer.
[0015] According to the digital communication cable provided by the utility model, the second fire-resistant layer comprises:
[0016] A mica tape is wrapped outside the first fire-resistant layer.
[0017] According to the digital communication cable provided by the utility model, the conductor, the insulating layer, the first fire-resistant layer and the second fire-resistant layer are provided with at least two groups and form a pair of twisted cores;
[0018] The partial shielding layer comprises:
[0019] An aluminum plastic tape is wrapped and pasted outside the pair of twisted cores;
[0020] A drainage wire is arranged inside the aluminum plastic tape.
[0021] According to the digital communication cable provided by the utility model, the drainage wire is a tinned copper wire.
[0022] According to the digital communication cable provided by the utility model, the total shielding layer comprises:
[0023] A copper tinned copper wire is wound outside the partial shielding layer, and semiconductive glue is coated on the copper tinned copper wire;
[0024] The filling layer comprises:
[0025] Water-blocking glue is filled between the partial shielding layer and the total shielding layer.
[0026] According to the digital communication cable provided by the utility model, further comprising:
[0027] An inner lining layer is wrapped outside the filling layer.
[0028] According to the digital communication cable provided by the utility model, further comprising:
[0029] An armor layer is wrapped outside the inner lining layer.
[0030] According to the digital communication cable provided by the utility model, further comprising:
[0031] A sheath layer is wrapped outside the armor layer.
[0032] The utility model further provides a ship, comprising: the digital communication cable provided by the utility model.
[0033] The utility model provides a kind of digital communication cable, it includes: conductor, insulating layer, first fireproof layer, second fireproof layer, partial shielding layer, total shielding layer and filling layer etc..Insulating layer is covered in the conductor outside side;First fireproof layer is covered in the insulating layer outside side;Second fireproof layer is covered in the first fireproof layer outside side;Partial shielding layer is located in the second fireproof layer outside side;Total shielding layer is located in the partial shielding layer outside side;Filling layer is filled between the partial shielding layer and the total shielding layer.The utility model provides a kind of digital communication cable, first fireproof layer and second fireproof layer are successively covered in the outside surface of insulating layer, double fireproof layer structure is used, to strengthen the fire resistance of cable;Filling layer is filled between partial shielding layer and total shielding layer, total shielding layer uses glue coating treatment, utilize total shielding layer glue coating treatment and filling layer jointly guarantee the longitudinal air tightness of cable, prevent harmful gas through cable core gap spread to safety area.
[0034] Further, the utility model provides a kind of ship, because including the digital communication cable in the above-mentioned embodiment of the utility model, therefore, have same advantage as above. DRAWINGS
[0035] In order to more clearly illustrate the technical scheme in the utility model or prior art, the following will be to the embodiment or prior art description needed to use a simple introduction to the drawing, obviously, the following description in the drawing is some embodiments of the utility model, for those skilled in the art, without creative labor, according to these drawings, other drawings can also be obtained.
[0036] Figure 1 It is the sectional view of the digital communication cable provided in one of the embodiments of the utility model.
[0037] Figure 2 It is the local structure schematic view of conductor, insulating layer, first fireproof layer and second fireproof layer provided in one of the embodiments of the utility model.
[0038] Reference signs:
[0039] 1, conductor;2, insulating layer;31, first fireproof layer;32, second fireproof layer;4, filling layer;5, partial shielding layer;51, aluminum plastic tape;52, drainage line;6, total shielding layer;7, inner liner;8, armor layer;9, sheath layer. DETAILED DESCRIPTION
[0040] In order to make the purpose, technical scheme and advantages of the utility model clearer, the technical scheme of the utility model will be described clearly and completely in combination with the drawings in the utility model below. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the utility model.
[0041] In the description of the present embodiment, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present embodiment and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present embodiment.
[0042] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present embodiment, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.
[0043] In the present embodiment, unless otherwise specifically defined and limited, the terms "arrangement", "installation", "connection", "connection", "fixation" and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication or interaction relationship of two elements, unless otherwise specifically limited. For the ordinary skilled in the art, the specific meaning of the above terms in the present embodiment can be understood according to the specific circumstances.
[0044] In the embodiments of the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact of the first and second features, or indirect contact of the first and second features through an intermediate medium.
[0045] In view of the poor air tightness and poor fire resistance in the prior art, the utility model provides a digital communication cable with good longitudinal air tightness and fire resistance.
[0046] The utility model discloses a digital communication cable. Figure 1 And Figure 2 The utility model discloses a digital communication cable. The digital communication cable comprises a conductor 1, an insulating layer 2, a first fireproof layer 31, a second fireproof layer 32, a partial shielding layer 5, a total shielding layer 6, a filling layer 4, an inner lining layer 7, an armoring layer 8 and a sheath layer 9.
[0047] The insulating layer 2 is coated on the outer side of the conductor 1, the first fireproof layer 31 is coated on the outer side of the insulating layer 2, the second fireproof layer 32 is coated on the outer side of the first fireproof layer 31, the partial shielding layer 5 is located on the outer side of the second fireproof layer 32, the total shielding layer 6 is located on the outer side of the partial shielding layer 5, and the total shielding layer 6 is sealed by glue, and the filling layer 4 is filled between the partial shielding layer 5 and the total shielding layer 6.
[0048] Specifically, the conductor 1 is a bare copper or tinned conductor 1, which is a tinned or bare copper conductor 1 formed by a single wire or 7 single wires regularly stranded; the copper rod is drawn into a single wire with a required outer diameter by a wire drawing machine, and the 7 single wires are regularly stranded by a cage stranding machine.
[0049] Specifically, the insulating layer 2 is made of polyolefin, HDPE or foamed PE, and is produced by an extruding machine with an extruding temperature of 140-220 DEG C; the insulating layer 2 is coated on the outer side of the conductor 1.
[0050] Specifically, the first fireproof layer 31 and the second fireproof layer 32 are sequentially coated on the outer side of the insulating layer 2, and a double-layer fireproof layer structure is adopted, so that the fire resistance of the cable is strengthened.
[0051] Specifically, the total shielding layer 6 is coated with semiconductive glue to ensure air tightness.
[0052] Specifically, the sub-shielding layer 5 is located outside the second fireproof layer 32, the total shielding layer 6 is located outside the sub-shielding layer 5, and the filling layer 4 is filled between the sub-shielding layer 5 and the total shielding layer 6, so that the longitudinal air tightness of the cable is ensured by the total shielding layer 6 and the filling layer 4, and harmful gas is prevented from spreading to the safe area through the cable core gap.
[0053] The utility model provides a kind of digital communication cable, it includes: conductor 1, insulating layer 2, first fireproof layer 31, second fireproof layer 32, sub-shielding layer 5, total shielding layer 6 and filling layer 4 etc..Insulating layer 2 is coated in the outer side of conductor 1;First fireproof layer 31 is coated in the outer side of insulating layer 2;Second fireproof layer 32 is coated in the outer side of first fireproof layer 31;Sub-shielding layer 5 is located outside the second fireproof layer 32;Total shielding layer 6 is located outside the sub-shielding layer 5;Filling layer 4 is filled between the sub-shielding layer 5 and the total shielding layer 6.The utility model provides a kind of digital communication cable, first fireproof layer 31 and second fireproof layer 32 are coated in the outer side of insulating layer 2 in sequence, double fireproof layer structure is used, to strengthen the fire resistance of cable;Filling layer 4 is filled between the sub-shielding layer 5 and the total shielding layer 6, total shielding layer 6 uses glue coating processing, the longitudinal air tightness of cable is ensured by total shielding layer 6 glue coating processing and filling layer 4, and harmful gas is prevented from spreading to the safe area through the cable core gap.
[0054] In one embodiment of the utility model, the first fireproof layer 31 includes: ceramic silicon rubber resin, which is coated on the outer surface of the insulating layer 2. Specifically, ceramic silicon rubber resin is coated on the outer surface of the insulating layer 2, and irradiation curing is performed to avoid failure of the insulating layer 2 due to conventional high-temperature vulcanization, which affects electrical performance. In this embodiment, ceramic silicon rubber resin subjected to irradiation curing is coated on the surface of the insulating layer 2 to provide heat insulation, oxygen insulation, and flame retardation, thereby protecting the internal insulating layer 2 and providing insulation under fire conditions.
[0055] In one embodiment of the utility model, the second fireproof layer 32 includes: mica tape, which is wrapped around the outer side of the first fireproof layer 31. Specifically, the second fireproof layer 32 uses mica tape with low water content, a covering rate of 50%, and a wrapping angle controlled within 20°-30°. In this embodiment, wrapping mica tape is used for reinforcement and protection to reduce the impact of knocking on the insulating layer 2.
[0056] In the above embodiment, the fireproof layer uses a double-layer fireproof structure of ceramic silicon rubber resin and mica tape, which overcomes the defects of poor fire resistance of single-layer mica tape and poor electrical performance of double-layer mica tape in the prior art, and balances fire resistance and electrical performance.
[0057] In one of the embodiments of the utility model, conductor 1, insulating layer 2, first fireproof layer 31 and second fireproof layer 32 are provided with at least two groups and form a pair of twisted cores. The partial shielding layer 5 comprises: aluminum plastic tape 51 and drainage wire 52. The aluminum plastic tape 51 is wrapped and pasted on the outside of the pair of twisted cores; the drainage wire 52 is arranged on the inside of the aluminum plastic tape 51. Preferably, the drainage wire 52 is tinned copper wire. Specifically, the aluminum plastic tape 51 and the tinned copper wire are selected as the partial shielding layer 5, one side of the aluminum plastic tape 51 has glue, and it is wrapped at room temperature, and after wrapping, it is passed through an oven to make the aluminum plastic tape 51 stick to the pair of twisted cores.
[0058] In one of the embodiments of the utility model, the total shielding layer 6 comprises: copper tinned copper wire, which is wound on the outside of the partial shielding layer 5, and half-conductive glue is coated on the copper tinned copper wire. The filling layer 4 comprises: water-blocking glue, which is filled between the partial shielding layer 5 and the total shielding layer 6. Specifically, the total shielding layer 6 is woven by a plurality of copper tinned copper wires, the weaving density is greater than 90%, and half-conductive glue is coated after weaving, and it is placed at room temperature for solidification; when the cable is formed, the water-blocking glue is filled by using a glue coating device, and it is placed at room temperature for solidification. In the embodiment, the wire pair is wrapped by the aluminum plastic tape 51 through a heat oven, the water-blocking glue is filled when the cable is formed, the copper wire is woven as the total shielding layer 6 and coated with the half-conductive glue to ensure the air tightness, and the electrical flow is also ensured
[0059] In one of the embodiments of the utility model, the digital communication cable further comprises: an inner lining layer 7, which is covered on the outside of the filling layer 4. Specifically, the inner lining layer 7 is selected from ceramicized polyolefin material, and the processing temperature is controlled at 160 DEG C to 185 DEG C; when high temperature or flame is encountered, it will not simply burn out, but will be converted into a hard, porous and certain strength ceramic protective shell to protect the internal structure from impact. In the embodiment, the inner lining layer 7 is extruded ceramicized polyolefin material, which plays a protective role of heat insulation, oxygen isolation, fire resistance and anti-knocking.
[0060] In one of the embodiments of the utility model, the digital communication cable further comprises: an armor layer 8, which is covered on the outside of the inner lining layer 7. Specifically, the armor layer 8 is selected from aramid woven as a reinforcing layer to improve the tensile property of the cable, and the weight is far less than that of metal weaving. In the embodiment, the armor layer 8 is selected from aramid woven, and since the electrical performance of the digital communication cable is easily affected by stretching, the aramid reinforcing layer improves the tensile property of the cable and reduces the weight of the cable.
[0061] In one of the embodiments of the utility model, the digital communication cable further comprises: a sheath layer 9, which is covered on the outside of the armor layer 8. Specifically, the sheath layer 9 is selected from polyolefin / crosslinked polyolefin, and other sheath materials can be selected according to the application scene. In the embodiment, the sheath layer 9 can select different materials according to the requirements of the use environment, such as oil-resistant or mud-resistant materials.
[0062] The utility model also provides a kind of ship. The ship includes: digital communication cable in the above embodiment of the utility model.
[0063] Specifically, the digital communication cable in the embodiment of the utility model is low-smoke halogen-free flame-retardant fire-resistant as a whole, meets the requirements of marine cables, and provides a foundation for the safe operation of the ship.
[0064] The ship provided by the utility model has the same advantages as above because it includes the digital communication cable in the above embodiment of the utility model.
[0065] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the utility model, but not to limit them; although the utility model has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.
Claims
1. A digital communication cable, characterized in that, include: Conductor (1); An insulating layer (2) is applied to the outside of the conductor (1); The first fire-resistant layer (31) covers the outside of the insulating layer (2); The second refractory layer (32) covers the outside of the first refractory layer (31); The shielding layer (5) is located outside the second fire-resistant layer (32); The main shielding layer (6) is located outside the sub-shielding layer (5), and the main shielding layer (6) is sealed with adhesive. A filling layer (4) is filled between the sub-shielding layer (5) and the total shielding layer (6).
2. The digital communication cable according to claim 1, characterized in that, The first refractory layer (31) includes: Ceramicized silicone rubber resin is coated on the outer surface of the insulating layer (2).
3. The digital communication cable according to claim 1, characterized in that, The second refractory layer (32) includes: Mica tape is wrapped around the outside of the first refractory layer (31).
4. The digital communication cable according to claim 1, characterized in that, The conductor (1), the insulation layer (2), the first fire-resistant layer (31) and the second fire-resistant layer (32) are provided in at least two sets and form a twisted pair core; The sub-shielding layer (5) includes: Aluminum-plastic tape (51) is wrapped and pasted on the outside of the twisted pair core; The drain line (52) is located inside the aluminum-plastic strip (51).
5. The digital communication cable according to claim 4, characterized in that, The drain wire (52) is a tin-plated copper wire.
6. The digital communication cable according to claim 1, characterized in that, The total shielding layer (6) includes: A copper-plated tin wire is wound around the outside of the shielding layer (5), and a semi-conductive adhesive is coated on the copper-plated tin wire. The filling layer (4) includes: Water-blocking adhesive is filled between the sub-shielding layer (5) and the main shielding layer (6).
7. The digital communication cable according to any one of claims 1 to 6, characterized in that, Also includes: The inner lining layer (7) covers the outside of the filling layer (4).
8. The digital communication cable according to claim 7, characterized in that, Also includes: The armor layer (8) covers the outside of the inner lining layer (7).
9. The digital communication cable according to claim 8, characterized in that, Also includes: Sheath layer (9) covers the outside of the armor layer (8).
10. A ship, characterized in that, include: The digital communication cable according to any one of claims 1 to 9.