CN213211766U

CN213211766U - Silicon rubber insulation ultra-high temperature fire-resistant cable

Info

Publication number: CN213211766U
Application number: CN202022074435.4U
Authority: CN
Inventors: 武浩
Original assignee: Shenzhen Qingyi Electronics Co ltd
Current assignee: Shenzhen Qingyi Electronics Co ltd
Priority date: 2020-09-21
Filing date: 2020-09-21
Publication date: 2021-05-14
Anticipated expiration: 2030-09-21

Abstract

The utility model relates to the technical field of cables, and a silicon rubber insulation ultra-high temperature fire resisting cable is disclosed, including the cable overcoat, the cable overcoat includes first band layer, metal sheath, separates oxygen layer, second band layer and outer jacket, the outside on first band layer is connected with metal sheath's inboard, metal sheath's the outside is connected with the inboard that separates the oxygen layer, the outside that separates the oxygen layer is connected with the inboard of second band layer, the outside on second band layer is connected with the inboard of outer jacket, the outside of cable overcoat bonds and has the wearing layer. This silicon rubber insulation ultra-high temperature fire resisting cable is provided with the wearing layer through the outside at the cable jacket, has strengthened the wear resistance of cable surface, avoids appearing the phenomenon of damage cable surface when taking place the friction with other objects, is provided with wear-resisting bump through the surface at the wearing layer, has strengthened the wear resistance of wearing layer, has prolonged the life of wearing layer.

Description

Silicon rubber insulation ultra-high temperature fire-resistant cable

Technical Field

The utility model relates to the technical field of cables, specifically be an insulating ultra-temperature fire resisting cable of silicon rubber.

Background

In order to ensure the performances of high temperature resistance, high light transmittance, high insulation resistance, no toxicity in combustion and the like of the fire-resistant cable, a mica tape is wrapped outside a conductor in the prior art, then polyethylene insulation is extruded outside the mica tape, and a flame-retardant low-smoke high-molecular polyolefin material is adopted as an outer protective layer, so that the fire-resistant cable is a common fire-resistant cable in the prior art.

Chinese authorized utility model publication (announcement) no: according to the silicone rubber insulation ultra-high temperature fire-resistant cable disclosed in CN211125116U, the rubber insulation layer wraps the outer side of the wire core, so that the cable has high flame retardant performance and stable fire resistance, and the integrity of the cable can be maintained in a high-temperature environment by matching with the support of the metal sheath, but in practice, when the cable generates contact friction with external objects, the outer surface of the cable is easily damaged.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides an insulating ultra-high temperature fire resistant cable of silicon rubber has solved the problem of the surface of cable is damaged easily when the cable produces the contact friction with external article in the current insulating ultra-high temperature fire resistant cable of silicon rubber who proposes in the above-mentioned background art actually.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:

the utility model provides a silicon rubber insulation ultra-high temperature fire-resistant cable, includes the cable overcoat, the cable overcoat includes first band layer, metal sheath, separates oxygen layer, second band layer and outer jacket, the outside on first band layer is connected with the inboard of metal sheath, and the metal sheath mainly plays the supporting role as the skeleton, the outside of metal sheath and the inboard that separates the oxygen layer are connected, separate the oxygen layer and can realize under high temperature, appear moisture, reduce cable internal temperature to form hard casing, block the infiltration burning of flame, the outside that separates the oxygen layer is connected with the inboard on second band layer, and second band layer insulating nature is good, the heat resistance is strong, corrosion resistance is good, and mechanical strength is high, can keep tying up when the higher flame of temperature burns to prevent that the oxygen layer that separates in it from receiving flame impact and drippage, the outside on second band layer is connected with the inboard of outer jacket, the utility model discloses a cable jacket, including cable jacket, outer jacket, cable jacket, insulating core, filler layer, fire-retardant, the outer jacket possesses the nontoxicity under the conflagration condition and gives off, the luminousness is high, characteristics such as fire-retardant, the outside of cable jacket bonds and has the wearing layer, the outside of wearing layer is provided with wear-resisting bump, the inside of cable jacket is provided with insulating core, insulating core and the inside space department of cable jacket are provided with the filling layer, the filling layer comprises the fire-retardant filler rope of high temperature resistance, insulating core includes silicon rubber insulating layer and a plurality of conductive core, and the silicon rubber insulating layer guarantees to endure the higher temperature under the conflagration condition and still keep good insulation resistance, and silicon rubber insulating material has broad temperature application scope, if under high temperature combustion, can form.

Furthermore, the first wrapping band layer is made of high-temperature-resistant flame-retardant wrapping bands, and the metal sheath is made of copper materials, aluminum materials and other metals.

Further, the oxygen barrier layer is made of a halogen-free low-smoke high-flame-retardant oxygen barrier polyolefin material with an oxygen index of more than forty-eight percent, and the second wrapping layer is made of a glass fiber strip.

Furthermore, the outer jacket is made of halogen-free low-smoke flame-retardant polyolefin material, and the conductive wire cores are all located inside the silicon rubber insulating layer.

Furthermore, the number of the wear-resistant salient points is set to be a plurality of, and the wear-resistant salient points are uniformly distributed on the outer surface of the wear-resistant layer.

Furthermore, the wear-resistant layer and the wear-resistant salient points are both made of wear-resistant rubber materials, and the wear-resistant layer and the wear-resistant salient points are of an integrally formed structure.

(III) advantageous effects

The utility model provides an insulating ultra-temperature fire resisting cable of silicon rubber possesses following beneficial effect:

(1) this silicon rubber insulation ultra-high temperature fire resisting cable is provided with the wearing layer through the outside at the cable jacket, has strengthened the wear resistance of cable surface, avoids appearing the phenomenon of damage cable surface when taking place the friction with other objects, is provided with wear-resisting bump through the surface at the wearing layer, has strengthened the wear resistance of wearing layer, has prolonged the life of wearing layer.

(2) This silicon rubber insulation ultra-high temperature fire resisting cable is provided with the filling layer through the inside space department at insulating sinle silk and cable jacket, has guaranteed insulating sinle silk's integrality, has improved insulating sinle silk's fire resistance.

Drawings

Fig. 1 is a schematic structural diagram of a side view section of the silicon rubber insulated ultra-high temperature fire-resistant cable of the present invention;

fig. 2 is a schematic structural diagram of the main appearance of the silicone rubber insulated ultra-high temperature fire-resistant cable of the present invention;

fig. 3 is a schematic structural diagram of a side view profile of an insulated wire core of the silicon rubber insulated ultra-high temperature fire-resistant cable according to the present invention;

fig. 4 is the three-dimensional structure schematic diagram of the wear-resistant layer of the silicon rubber insulation ultra-high temperature fire-resistant cable of the present invention.

In the figure: 1. a cable jacket; 2. a first wrapping layer; 3. a metal sheath; 4. an oxygen barrier layer; 5. a second band layer; 6. an outer jacket; 7. a wear layer; 8. wear-resistant bumps; 9. an insulated wire core; 10. a filling layer; 11. a conductive wire core; 12. and a silicon rubber insulating layer.

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.

Referring to fig. 1-4, the present invention provides a technical solution:

the utility model provides an insulating ultra-high temperature fire resisting cable of silicon rubber, including cable cover 1, cable cover 1 includes first band layer 2, metal sheath 3, separate oxygen layer 4, second band layer 5 and outer jacket 6, first band layer 2 adopts the fire-retardant band of high temperature resistant, the outside of first band layer 2 is connected with metal sheath 3's inboard, metal sheath 3 is made for metals such as copper product or aluminum product, metal sheath 3 mainly plays the supporting role as the skeleton, metal sheath 3's the outside is connected with the inboard that separates oxygen layer 4, separate oxygen layer 4 and be made by the high fire-retardant polyolefin material of steamed low smoke high fire-retardant oxygen barrier that oxygen index is greater than forty-eighteen per cent, separate oxygen layer 4 can realize under high temperature, separate out moisture, reduce the inside temperature of cable, and form hard casing, block the infiltration burning of flame, separate oxygen layer 4's the outside and be connected with second band layer 5's inboard, second band layer 5 is made by the fine strip, the second wrapping layer 5 is good in insulativity, strong in heat resistance, good in corrosion resistance and high in mechanical strength, can be kept tight when flame with higher temperature is fired, and prevents the oxygen insulation layer 4 in the second wrapping layer from dropping due to flame impact, the outer side of the second wrapping layer 5 is connected with the inner side of the outer protection layer 6, the outer protection layer 6 is made of halogen-free low-smoke flame-retardant polyolefin material, the outer protection layer 6 has the characteristics of no toxic emission, high light transmittance, flame retardance and the like under the condition of fire, the outer side of the cable jacket 1 is bonded with the wear-resistant layer 7, the wear-resistant performance of the outer surface of the cable is enhanced by arranging the wear-resistant layer 7 on the outer side of the cable jacket 1, the phenomenon that the outer surface of the cable is damaged when the outer surface of the cable is rubbed with other objects is avoided, the wear-resistant salient points 8 are arranged on the outer side of the wear-resistant layer, the wear-resistant layer 7 and the plurality of wear-resistant salient points 8 are both made of wear-resistant rubber materials, the wear-resistant layer 7 and the plurality of wear-resistant salient points 8 are of an integrally formed structure, the wear-resistant salient points 8 are arranged on the outer surface of the wear-resistant layer 7, so that the wear resistance of the wear-resistant layer 7 is enhanced, the service life of the wear-resistant layer 7 is prolonged, the insulating wire cores 9 are arranged inside the cable jacket 1, the filling layers 10 are arranged at gaps between the insulating wire cores 9 and the inside of the cable jacket 1, the filling layers 10 are composed of high-temperature-resistant flame-retardant filling ropes, the integrity of the insulating wire cores 9 is ensured by arranging the filling layers 10 at the gaps between the insulating wire cores 9 and the inside of the cable jacket 1, the flame retardance of the insulating wire cores 9 is improved, each insulating wire core 9 comprises a silicon rubber insulating layer 12 and a plurality of conductive wire cores 11, each conductive wire core 11 is positioned inside, the silicon rubber insulating material has wide temperature application range, and a silica hard shell inorganic insulator is formed on the surface of a conductor under high-temperature combustion, so that the silicon rubber insulating material has excellent electrical insulating property.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise. Furthermore, in the present disclosure, unless otherwise expressly specified or limited, the terms "disposed," "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; or indirectly through an intermediary. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The silicon rubber insulation ultra-high temperature fire-resistant cable comprises a cable jacket (1) and is characterized in that the cable jacket (1) comprises a first wrapping layer (2), a metal sheath (3), an oxygen separation layer (4), a second wrapping layer (5) and an outer protection layer (6), the outer side of the first wrapping layer (2) is connected with the inner side of the metal sheath (3), the outer side of the metal sheath (3) is connected with the inner side of the oxygen separation layer (4), the outer side of the oxygen separation layer (4) is connected with the inner side of the second wrapping layer (5), the outer side of the second wrapping layer (5) is connected with the inner side of the outer protection layer (6), the outer side of the cable jacket (1) is bonded with a wear-resistant layer (7), wear-resistant salient points (8) are arranged on the outer side of the wear-resistant layer (7), an insulation wire core (9) is arranged inside the cable jacket (1), a filling layer (10) is arranged at a gap between the insulation wire core (9) and the inner part, the filling layer (10) is composed of a high-temperature-resistant flame-retardant filling rope, and the insulating wire core (9) comprises a silicon rubber insulating layer (12) and a plurality of conductive wire cores (11).

2. The silicon rubber insulated ultra-high temperature fire-resistant cable according to claim 1, wherein the first wrapping layer (2) is made of high temperature resistant fire-resistant wrapping tape, and the metal sheath (3) is made of copper or aluminum.

3. The silicon rubber-insulated ultra-high temperature fire-resistant cable according to claim 1, wherein the oxygen barrier layer (4) is made of a halogen-free low-smoke high-flame-retardant oxygen-barrier polyolefin material with an oxygen index of more than forty-eight percent, and the second wrapping layer (5) is made of a glass fiber tape.

4. The silicon rubber insulated superhigh temperature fire-resistant cable according to claim 1, characterized in that the outer sheath (6) is made of halogen-free low-smoke flame-retardant polyolefin material, and the plurality of conductive cores (11) are all located inside the silicon rubber insulation layer (12).

5. The silicon rubber insulated superhigh temperature fire-resistant cable according to claim 1, characterized in that the number of the wear-resistant salient points (8) is multiple, and the multiple wear-resistant salient points (8) are uniformly distributed on the outer surface of the wear-resistant layer (7).

6. The silicon rubber insulated ultra-high temperature fire-resistant cable according to claim 1, wherein the wear-resistant layer (7) and the wear-resistant salient points (8) are made of wear-resistant rubber materials, and the wear-resistant layer (7) and the wear-resistant salient points (8) are of an integrally formed structure.