CN214956048U

CN214956048U - Flexible inorganic insulation fireproof cable

Info

Publication number: CN214956048U
Application number: CN202120342466.5U
Authority: CN
Inventors: 朱振远; 王帅; 刘亚芹
Original assignee: Kazakhstan Cable Manufacturing Co ltd
Current assignee: Kazakhstan Cable Manufacturing Co ltd
Priority date: 2021-02-04
Filing date: 2021-02-04
Publication date: 2021-11-30
Anticipated expiration: 2031-02-04

Abstract

The utility model relates to the technical field of cables, in particular to a flexible inorganic insulation fireproof cable; the copper conductor can keep the space among the copper conductors balanced, improve the overall tensile strength and flexibility, and have better quality and more practicability; including multiunit copper conductor, multiunit supporting framework, multiunit connecting spring and oversheath, multiunit supporting framework's middle part is provided with annular mouth, supporting framework's outer wall is provided with the arc wall of multiunit circumference equipartition, multiunit copper conductor circumference equipartition is in the arc wall of supporting framework outer wall, multiunit supporting framework equidistance equipartition, and multiunit supporting framework passes through multiunit connecting spring fixed connection, the oversheath is located multiunit copper conductor and is enclosed the annular outside of closing formation, between oversheath and multiunit copper conductor, all fill in supporting framework and the connecting spring has inorganic insulating material.

Description

Flexible inorganic insulation fireproof cable

Technical Field

The utility model relates to a technical field of cable especially relates to a flexible inorganic insulation fireproof cable.

Background

As is well known, a flexible inorganic insulating fireproof cable is a wire used for power transmission; with the development of society and the increase of power demand, cables are widely applied, especially, insulated fireproof cables are applied to provide guarantee for safe transportation of power, and the existing insulated fireproof cables are generally in a form that a plurality of copper conductors are wrapped by insulating layers and are wrapped by the insulating layers and sheaths are arranged outside; however, in use, the spacing between a plurality of copper wires is difficult to guarantee, so that the spacing between the insulating layers between the wires is different, the quality of the cable is affected, and the flexibility is poor while the tensile strength is improved, so that the practicability is poor.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a make interval between each copper conductor keep balanced, improve its whole tensile strength and pliability, the quality is better, more practical flexible inorganic insulation fireproof cable.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: including multiunit copper conductor, multiunit supporting framework, multiunit connecting spring and oversheath, multiunit supporting framework's middle part is provided with annular mouth, supporting framework's outer wall is provided with the arc wall of multiunit circumference equipartition, multiunit copper conductor circumference equipartition is in the arc wall of supporting framework outer wall, multiunit supporting framework equidistance equipartition, and multiunit supporting framework passes through multiunit connecting spring fixed connection, the oversheath is located multiunit copper conductor and is enclosed the annular outside of closing formation, between oversheath and multiunit copper conductor, all fill in supporting framework and the connecting spring has inorganic insulating material.

Preferably, the copper-clad cable further comprises a copper sheath, the copper sheath is wrapped on the annular outer side formed by the multiple groups of copper conducting wires in a surrounding mode, the outer sheath is wrapped on the outer wall of the copper sheath, and the copper sheath is in a spiral corrugated shape.

Preferably, the steel strand is further included, and the steel strand penetrates through the annular openings in the multiple groups of supporting frameworks and is fixed in the middle of the annular openings through the inorganic insulating materials.

Preferably, the outer sheath is made of halogen-free low-smoke flame-retardant plastic.

Preferably, the multiple groups of supporting frameworks are equidistantly distributed at intervals of 0.5 m.

Preferably, the multiple groups of copper wires are twisted and formed by multiple groups of bare copper wires, and the copper wires are wrapped by insulating layers.

Preferably, the inorganic insulating material is a mixture of magnesium oxide and mica.

(III) advantageous effects

Compared with the prior art, the utility model provides a flexible inorganic insulation fireproof cable possesses following beneficial effect: this flexible inorganic insulation fireproof cable through the setting of multiunit support chassis, can make the interval between the multiunit copper conductor keep unanimous to can effectively support the copper conductor, make inorganic insulating material evenly fill, and through the setting of connecting the spring, when making cable tensile strength promote, its pliability is not influenced, makes the cable easily crooked, has improved the quality of cable.

Drawings

Fig. 1 is a schematic view of a three-dimensional structure of the inorganic insulating material of the present invention when it is not filled;

FIG. 2 is a schematic diagram of the cross-sectional structure of the present invention;

FIG. 3 is a schematic view of the longitudinal cut structure of the inorganic insulating material of the present invention when it is not filled;

in the drawings, the reference numbers: 1. a copper wire; 2. a support framework; 3. a connecting spring; 4. an outer sheath; 5. an annular mouth; 6. an arc-shaped slot; 7. an inorganic insulating material; 8. a copper sheath; 9. steel strand wires; 10. an 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. 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. 1-3, the utility model discloses a flexible inorganic insulation fireproof cable, including multiunit copper conductor 1, multiunit supporting framework 2, multiunit connecting spring 3 and oversheath 4, the middle part of multiunit supporting framework 2 is provided with annular mouth 5, the outer wall of supporting framework 2 is provided with multiunit arc wall 6 of circumference equipartition, multiunit copper conductor 1 circumference equipartition is in the arc wall 6 of supporting framework 2 outer wall, multiunit supporting framework 2 equidistance equipartition, multiunit supporting framework 2 is through multiunit connecting spring 3 fixed connection, oversheath 4 cover is located the annular outside that multiunit copper conductor 1 encloses the formation, oversheath 4 and multiunit copper conductor 1, supporting framework 2 and connecting spring 3 all fill inorganic insulating material 7; through the setting of multiunit supporting framework 2, can make the interval between multiunit copper conductor 1 keep unanimous to can effectively support copper conductor 1, make inorganic insulating material 7 evenly fill, and through the setting of connecting spring 3, when making the promotion of cable tensile strength, its pliability is not influenced, makes the cable easily crooked, has improved the quality of cable.

The utility model discloses a flexible inorganic insulation fireproof cable, still include copper sheath 8, copper sheath 8 cladding is in the annular outside that multiunit copper conductor 1 encloses and closes the formation, oversheath 4 cladding is in the outer wall department of copper sheath 8, copper sheath 8 is spiral ripple form; through the arrangement of the copper sheath 8, the melting temperature of the copper sheath 8 is about 1000 ℃, when the copper sheath is close to a fire source, a certain flame retardant effect can be achieved, meanwhile, the copper sheath 8 has certain hardness, is firm and durable, can withstand severe mechanical damage without damaging the electrical property of the copper sheath, can achieve a certain protection effect on the internal copper conductor 1, and due to the spiral corrugated arrangement, the flexibility of the copper sheath 8 can be improved, the heat dissipation area can be increased, and the heat dissipation performance of the cable can be improved; the steel strand wires 9 penetrate through the annular openings 5 on the multiple groups of supporting frameworks 2 and are fixed in the middle of the annular openings 5 through the inorganic insulating materials 7; the tensile property of the cable can be further improved by arranging the steel strand 9; the outer sheath 4 is made of halogen-free low-smoke flame-retardant plastic; the halogen-free low-smoke flame-retardant plastic material can play a certain flame-retardant effect, and the flame-retardant property of the cable is improved; the multiple groups of supporting frameworks 2 are distributed at equal intervals of 0.5 m; the multiple groups of supporting frameworks 2 are distributed at intervals of 0.5 m at equal intervals, so that the optimal flexibility of the cable can be ensured while effective equal-distance supporting of the copper conductors 1 is ensured; a plurality of groups of copper wires 1 are twisted and formed by a plurality of groups of bare copper wires, and an insulating layer 10 is coated outside the copper wires 1; by the arrangement of the insulating layer 10, the insulating performance can be further improved; the inorganic insulating material 7 is a mixture of magnesium oxide and mica; the magnesium oxide is solidified after being heated, so that a certain flame retardant effect can be achieved, and meanwhile, the mixed material of the magnesium oxide and the mica is not easy to conduct electricity, so that a better insulation effect can be achieved.

When the cable is used, the spacing among the multiple groups of copper conductors 1 can be kept consistent through the arrangement of the multiple groups of supporting frameworks 2, the copper conductors 1 can be effectively supported, the inorganic insulating materials 7 are uniformly filled, the flexibility of the cable is not influenced while the tensile strength of the cable is improved through the arrangement of the connecting springs 3, the cable is easy to bend, and the quality of the cable is improved; through the arrangement of the copper sheath 8, the melting temperature of the copper sheath 8 is about 1000 ℃, when the copper sheath is close to a fire source, a certain flame retardant effect can be achieved, meanwhile, the copper sheath 8 has certain hardness, is firm and durable, can withstand severe mechanical damage without damaging the electrical property of the copper sheath, can achieve a certain protection effect on the internal copper conductor 1, and due to the spiral corrugated arrangement, the flexibility of the copper sheath 8 can be improved, the heat dissipation area can be increased, and the heat dissipation performance of the cable can be improved; the tensile property of the cable can be further improved by arranging the steel strand 9; the halogen-free low-smoke flame-retardant plastic material can play a certain flame-retardant effect, and the flame-retardant property of the cable is improved; the multiple groups of supporting frameworks 2 are distributed at intervals of 0.5 m at equal intervals, so that the optimal flexibility of the cable can be ensured while effective equal-distance supporting of the copper conductors 1 is ensured; by the arrangement of the insulating layer 10, the insulating performance can be further improved; the magnesium oxide is solidified after being heated, so that a certain flame retardant effect can be achieved, and meanwhile, the mixed material of the magnesium oxide and the mica is not easy to conduct electricity, so that a better insulation effect can be achieved.

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. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.

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

1. A flexible inorganic insulation fireproof cable is characterized by comprising a plurality of groups of copper conductors (1), a plurality of groups of supporting frameworks (2), a plurality of groups of connecting springs (3) and an outer sheath (4), the middle parts of the plurality of groups of supporting frameworks (2) are provided with annular openings (5), the outer wall of the supporting framework (2) is provided with a plurality of groups of arc-shaped grooves (6) which are uniformly distributed in the circumferential direction, the plurality of groups of copper wires (1) are circumferentially and uniformly distributed in the arc-shaped groove (6) on the outer wall of the supporting framework (2), the plurality of groups of supporting frameworks (2) are uniformly distributed at equal intervals, the plurality of groups of supporting frameworks (2) are fixedly connected through the plurality of groups of connecting springs (3), the outer sheath (4) is sleeved on the annular outer side formed by the multiple groups of copper wires (1), inorganic insulating materials (7) are filled between the outer sheaths (4) and the multiple groups of copper wires (1) and in the supporting frameworks (2) and the connecting springs (3).

2. The flexible inorganic insulation fireproof cable according to claim 1, further comprising a copper sheath (8), wherein the copper sheath (8) is wrapped on an annular outer side formed by enclosing a plurality of groups of copper conductors (1), the outer sheath (4) is wrapped on an outer wall of the copper sheath (8), and the copper sheath (8) is in a spiral corrugated shape.

3. The flexible inorganic insulation fireproof cable of claim 2, further comprising steel strands (9), wherein the steel strands (9) pass through the annular openings (5) of the plurality of groups of support frames (2) and are fixed in the middle of the annular openings (5) through the inorganic insulating material (7).

4. A flexible inorganic insulating fireproof cable according to claim 3, wherein the outer sheath (4) is of halogen-free low-smoke flame retardant plastic material.

5. A flexible inorganic insulating fireproof cable according to claim 4, wherein the multiple groups of supporting skeletons (2) are equally spaced 0.5 meters apart.

6. A flexible inorganic insulating fireproof cable according to claim 5, characterized in that the plurality of copper conductors (1) are twisted and shaped by a plurality of bare copper wires, the copper conductors (1) being coated with an insulating layer (10).