CN210575225U - Fire-resistant cable for aerospace - Google Patents

Abstract

The utility model belongs to the technical field of aerospace equipment materials, in particular to a fire-resistant cable for aerospace, which comprises a wire, wherein the outer surface of the wire is provided with an inner insulating layer, an inner shielding layer and an inner fireproof layer, thereby the wire can not interfere with each other, and has certain fire-resistant property, when the cable is extruded, the utility model can not crack and flatten due to extrusion, the pressure-resistant property of the cable is enhanced, and the cable is provided with a reinforcing rib, so that the utility model has stronger stretch-resistant property, and the cable has stronger anti-creeping, anti-interference, waterproof and fire-resistant properties in the use process by being provided with an outer insulating layer, an outer shielding layer, an outer fireproof layer, a waterproof layer and an anti-corrosion layer, and the outer protective layer is made of a braided layer, a tin foil layer and a wear-resistant layer, and the tin foil layer has higher fire-resistant and heat-insulating properties, and further enhance the fire resistance of the utility model.

Description

Fire-resistant cable for aerospace

Technical Field

The utility model belongs to the technical field of aerospace equipment material, concretely relates to fire resisting cable for aerospace.

Background

With the rapid development of aerospace industry, the improvement of space technology and the continuous deepening of understanding of the universe environment in China, higher performance requirements are provided for connecting wires and cables used in the aerospace field, the cable is usually a cable similar to a rope formed by twisting a plurality of wires or groups of wires, each group of wires are mutually insulated and often twisted around a center, and the whole outer surface is wrapped with a highly-insulated covering layer, so that the cable is widely applied to various fields of social life;

and to the cable that uses in the aerospace because of environmental reason, need higher requirement, and current cable can't satisfy the demand in the aerospace field, current cable material tensile strength is lower, and compressive capacity is weaker, often cause the phenomenon of tearing apart and chap because of the pulling force is too big in the use, and receive great pressure to flatten often, thereby shortened the life of cable greatly and brought very big risk to the aerospace industry, and current cable fire behavior is lower, can't satisfy the demand in the aerospace field.

SUMMERY OF THE UTILITY MODEL

To solve the problems set forth in the background art described above. The utility model provides a fire resisting cable for aerospace has that tensile strength is big, is difficult for flattening and the big characteristics of fire resistance.

In order to achieve the above object, the utility model provides a following technical scheme: the wire comprises a wire, wherein an inner insulating layer is wrapped and installed on the outer surface of the wire, an inner shielding layer is wrapped and installed on the outer surface of the inner insulating layer, an inner fireproof layer is wrapped and installed on the outer surface of the inner shielding layer, an armor layer is wrapped and installed on the outer surface of the inner fireproof layer, a filling layer is wrapped and installed on the outer surface of the armor layer, a supporting rod is embedded and installed between the armor layer and the filling layer, reinforcing ribs are uniformly embedded and installed in the supporting rod, and a mica layer is fixedly installed between the upper end and the lower end of the supporting rod and on the outer surface of the filling layer;

the bracing piece with the outer surface parcel of mica layer installs outer insulating layer, outer shielding layer is installed to outer insulating layer's surface parcel, outer flame retardant coating is installed to outer shielding layer's surface parcel, the waterproof layer is installed to outer flame retardant coating's surface parcel, the anticorrosive coating is installed to the surface parcel of waterproof layer, the outer protective layer is installed to the surface parcel of anticorrosive coating.

In order to make the utility model discloses can communicate many circuits simultaneously, conduct the utility model relates to an aerospace is with fire resisting cable is preferred, the quantity that the wire is four, just the wire is interweaved by the copper wire transposition and forms.

In order to make the utility model discloses can bear stronger pressure and indeformable and flatten, conduct the utility model relates to an aerospace is with fire resisting cable is preferred, the both ends of bracing piece are the arc structure, just the both ends of bracing piece all extend to the surface of filling layer.

In order to make the utility model provides a mutual insulation between the wire, as the utility model relates to an aerospace is with fire resisting cable is preferred, the bracing piece will the armor with it is two-layer about the filling layer is cut apart into.

In order to make the utility model discloses have higher fire resistive characteristic, as the utility model relates to an aerospace is with fire-resistant cable is preferred, the outer protective layer includes weaving layer, tin foil layer and wearing layer, the internal surface of weaving layer with anticorrosive coating looks fixed mounting, the internal surface on tin foil layer with the surface looks fixed connection of weaving layer, the internal surface of wearing layer with the surface looks fixed connection on tin foil layer.

In order to make the utility model discloses have higher wearability when using, conduct the utility model relates to an aerospace is with fire resisting cable is preferred, the wearing layer adopts rubber materials to make.

In order to make the utility model discloses stronger tensile strength has, as the utility model relates to an aerospace is with fire resisting cable is preferred, the strengthening rib adopts the high strength PP material to make.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the tin foil layer, the inner fireproof layer and the outer fireproof layer are arranged, so that the utility model has higher fireproof characteristic in the use process, and the tin foil layer has higher fireproof heat insulation and fire insulation characteristics, thereby avoiding the combustion and the damage of high temperature to the wire when the utility model is used;

2. the utility model is provided with the support rod, and the two ends of the support rod are arc-shaped structures, so that when the support rod is extruded, the support rod enhances the compression resistance characteristic of the utility model, thereby avoiding the compression and flattening in the use process;

3. the utility model discloses a be equipped with the strengthening rib, make the utility model discloses have stronger stretch-proofing characteristic, avoid the utility model discloses cause the fracture because of tensile when using, strengthen the utility model discloses at the suitability in the aerospace field.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of the present invention;

fig. 2 is a front sectional view of the present invention;

FIG. 3 is a schematic view of the structure of the support rod of the present invention;

FIG. 4 is a front sectional view of the outer protective layer of the present invention;

in the figure: 1. a wire; 2. an inner insulating layer; 3. an inner shield layer; 4. an inner fire barrier layer; 5. an armor layer; 6. a filling layer; 7. a support bar; 8. reinforcing ribs; 9. a mica layer; 10. an outer insulating layer; 11. an outer shield layer; 12. an outer fire barrier layer; 13. a waterproof layer; 14. an anticorrosive layer; 15. an outer protective layer; 16. weaving layer; 17. a tin foil layer; 18. and a wear-resistant 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. 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. 1-4, the present invention provides the following technical solutions: the wire comprises a wire 1, wherein an inner insulating layer 2 is wrapped and installed on the outer surface of the wire 1, an inner shielding layer 3 is wrapped and installed on the outer surface of the inner insulating layer 2, an inner fireproof layer 4 is wrapped and installed on the outer surface of the inner shielding layer 3, an armor layer 5 is wrapped and installed on the outer surface of the inner fireproof layer 4, a filling layer 6 is wrapped and installed on the outer surface of the armor layer 5, a supporting rod 7 is embedded and installed between the armor layer 5 and the filling layer 6, reinforcing ribs 8 are uniformly embedded and installed inside the supporting rod 7, and a mica layer 9 is fixedly installed on the outer surface of the filling layer 6 and located between the;

the outer insulating layer 10 is installed in the surface parcel of bracing piece 7 and mica layer 9, and the outer shielding layer 11 is installed in the surface parcel of outer insulating layer 10, and outer flame retardant coating 12 is installed in the surface parcel of outer shielding layer 11, and waterproof layer 13 is installed in the surface parcel of outer flame retardant coating 12, and anticorrosive coating 14 is installed in the surface parcel of waterproof layer 13, and outer protective layer 15 is installed in the surface parcel of anticorrosive coating 14.

In this embodiment: the utility model discloses a be equipped with internal insulation layer 2, internal shield layer 3, internal flame retardant coating 4 and armor 5 and filling layer 6, make the utility model provides an isolated and insulating between each wire 1, avoid influencing each other between the wire 1, and be equipped with bracing piece 7, strengthen the utility model discloses a compressive property, through being equipped with strengthening rib 8, increase the utility model discloses a tensile property, and be equipped with mica layer 9, external insulation layer 10, outer shielding layer 11, outer flame retardant coating 12, waterproof layer 13, anticorrosive coating 14, outer protective layer 15, and then make the utility model discloses have stronger anti-interference, waterproof, fire prevention, corrosion-resistant characteristic, increase the utility model discloses a performance.

Specifically, the number of the wires 1 is four, and the wires 1 are formed by twisting and interweaving copper wires.

In this embodiment: mutual noninterference between wire 1 makes the utility model discloses can communicate many circuits simultaneously.

Specifically, the two ends of the support rod 7 are arc-shaped structures, and the two ends of the support rod 7 extend to the outer surface of the filling layer 6.

In this embodiment: the utility model discloses when receiving external pressure, bracing piece 7 strengthens the utility model discloses a compressive property avoids the utility model discloses it is flattened.

Specifically, the supporting rod 7 divides the armor layer 5 and the filling layer 6 into an upper layer and a lower layer.

In this embodiment: the supporting rods 7 enable the wires 1 to be separated from each other, and mutual influence among the wires 1 is avoided.

Specifically, the outer protection layer 15 includes a woven layer 16, a tin foil layer 17 and a wear layer 18, the inner surface of the woven layer 16 is fixedly mounted with the corrosion protection layer 14, the inner surface of the tin foil layer 17 is fixedly connected with the outer surface of the woven layer 16, and the inner surface of the wear layer 18 is fixedly connected with the outer surface of the tin foil layer 17.

In this embodiment: tin foil layer 17 has higher fire prevention fire-resistant and thermal-insulated characteristic, and then makes the utility model discloses have stronger fire-resistant characteristic, and avoid outside high temperature to influence inside wire 1.

Specifically, the wear-resistant layer 18 is made of a rubber material.

In this embodiment: make the utility model discloses an outer surface is more wear-resisting, strengthens the utility model discloses a stand wear and tear degree.

Specifically, the reinforcing ribs 8 are made of high-strength PP materials.

In this embodiment: make the utility model discloses have stronger stretch-proofing characteristic.

The utility model discloses a theory of operation and use flow: the utility model discloses a be equipped with four wires 1, and the surface of four wires 1 all is equipped with internal insulation layer 2, internal shield layer 3, interior flame retardant coating 4, and then makes can not mutual interference between wire 1, and makes the surface of wire 1 have certain fire-resistant characteristic, makes the utility model discloses can communicate the four-way circuit simultaneously, and be equipped with armor 5 and mica layer 9, make wire 1 by further protection, through being equipped with bracing piece 7, make the utility model discloses when receiving the extrusion, bracing piece 7 supports the utility model discloses an inside can not take place to cause fracturing and flattening phenomenon because of the extrusion, strengthens the utility model discloses a compressive property, and be equipped with strengthening rib 8 in the inside of bracing piece 7, make the utility model discloses a stronger tensile property has, the utility model discloses a be equipped with external insulation layer 10, external shield layer 11, outer flame retardant coating 12, waterproof layer 13, Anticorrosive coating 14 makes the utility model discloses have stronger anticreep, jam-proof, waterproof, anticorrosion and fire-resistant performance in the use, just the utility model discloses an outer protective layer 15 is made for 16, tinfoil layer 17 of weaving layer and wearing layer 18, and tinfoil layer 17 has the thermal-insulated characteristic of higher fire-resistant fire prevention, and then further strengthens the utility model discloses a fire resistance.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. A fire-resistant cable for aerospace comprises a lead (1), and is characterized in that: the outer surface of the wire (1) is wrapped and installed with an inner insulating layer (2), the outer surface of the inner insulating layer (2) is wrapped and installed with an inner shielding layer (3), the outer surface of the inner shielding layer (3) is wrapped and installed with an inner fireproof layer (4), the outer surface of the inner fireproof layer (4) is wrapped and installed with an armor layer (5), the outer surface of the armor layer (5) is wrapped and installed with a filling layer (6), a supporting rod (7) is embedded and installed inside the armor layer (5) and the filling layer (6), reinforcing ribs (8) are uniformly embedded and installed inside the supporting rod (7), and a mica layer (9) is fixedly installed on the outer surface of the filling layer (6) and between the upper end and the lower end of the supporting rod (7);

bracing piece (7) with outer insulating layer (10) are installed to the surface parcel of mica layer (9), outer shielding layer (11) are installed to the surface parcel of outer insulating layer (10), outer flame retardant coating (12) are installed to the surface parcel of outer shielding layer (11), waterproof layer (13) are installed to the surface parcel of outer flame retardant coating (12), anticorrosive coating (14) are installed to the surface parcel of waterproof layer (13), outer protective layer (15) are installed to the surface parcel of anticorrosive coating (14).

2. The aerospace fire resistant cable of claim 1, wherein: the number of the leads (1) is four, and the leads (1) are formed by stranding and interweaving copper wires.

3. The aerospace fire resistant cable of claim 1, wherein: the two ends of the supporting rod (7) are arc-shaped structures, and the two ends of the supporting rod (7) extend to the outer surface of the filling layer (6).

4. The aerospace fire resistant cable of claim 1, wherein: the supporting rod (7) divides the armor layer (5) and the filling layer (6) into an upper layer and a lower layer.

5. The aerospace fire resistant cable of claim 1, wherein: the outer protection layer (15) comprises a woven layer (16), a tin foil layer (17) and a wear-resistant layer (18), wherein the inner surface of the woven layer (16) is fixedly mounted with the anti-corrosion layer (14), the inner surface of the tin foil layer (17) is fixedly connected with the outer surface of the woven layer (16), and the inner surface of the wear-resistant layer (18) is fixedly connected with the outer surface of the tin foil layer (17).

6. The aerospace fire resistant cable of claim 5, wherein: the wear-resistant layer (18) is made of rubber materials.

7. The aerospace fire resistant cable of claim 1, wherein: the reinforcing ribs (8) are made of high-strength PP materials.

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