CN213277542U - Cable with good anti-collision performance - Google Patents

Abstract

The utility model belongs to the technical field of power transmission's technique and specifically relates to a cable that anticollision performance is good is related to, and it includes a plurality of insulation core, insulation core's peripheral parcel has middle protective layer and outer protective layer, and outer protective layer's inside is equipped with the cavity, and the cavity centers on around insulation core and along insulation core's axial extension. The utility model discloses have the effect that makes the cable have better resistance to compression anti-impact ability.

Description

Cable with good anti-collision performance

Technical Field

The utility model belongs to the technical field of power transmission's technique and specifically relates to a cable that anticollision performance is good is related to.

Background

A cable is a power or signal transmission device, and is generally composed of several wires or groups of wires.

The current chinese utility model patent that publication number is CN205722892U discloses a solar cable, and insulating core from interior to exterior includes copper conductor inner core, lubricant layer, shielding insulating layer, lubricant layer and copper conductor inner core and shielding insulating layer sliding fit, and the armor from interior to exterior includes fire barrier and the inside oversheath that is equipped with the conductive metal silk, and solar cable is still including detecting the structure.

In the actual use process, the cable may be impacted or squeezed by external force during transportation, storage or work, so the anticollision performance of the cable needs to be better in the use process.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a cable that anticollision performance is good makes the cable have better resistance to compression crashproof ability.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: the utility model provides a cable that crashworthiness is good, includes a plurality of insulation core, insulation core's peripheral parcel has middle protective layer and outer protective layer, and the inside of outer protective layer is equipped with the cavity, and the cavity is around insulation core and along insulation core's axial extension.

Through adopting above-mentioned technical scheme, be equipped with the cavity in the outer protective layer, the circulation has the air in the cavity, receives the striking or when oppressing when the external world of cable, and the outer wall of outer protective layer at first receives the extrusion, because the existence of cavity, the cavity can receive the extrusion, and the degree that outer protective layer takes place deformation can be bigger to bear bigger impact and be difficult for making the cable impaired.

The present invention may be further configured in a preferred embodiment as: the middle of each cavity is provided with a supporting layer which divides the cavity into a plurality of cavities.

Through adopting above-mentioned technical scheme, the inner wall of cavity is supported to the supporting layer, makes the structure of cavity more stable.

The present invention may be further configured in a preferred embodiment as: the supporting layer is provided with a plurality of through holes.

Through adopting above-mentioned technical scheme, the through-hole can make the inside circulation of air of cavity, helps the heat dissipation of inside insulation core to because the existence of through-hole, certain deformation can take place for the supporting layer that makes, can have the buffering when the cable receives the collision, difficult fracture is impaired.

The present invention may be further configured in a preferred embodiment as: and a supporting pipe is arranged between the plurality of insulated wire cores, and the outer wall of the supporting pipe is abutted to the outer wall of the insulated wire core.

Through adopting above-mentioned technical scheme, stay tube and insulation core's outer wall butt, the stay tube supports insulation core's outer wall, makes insulation core location's more stable position should not take place the skew.

The present invention may be further configured in a preferred embodiment as: the outer wall of the supporting tube is connected with cavity dividing plates, the cavity dividing plates are arranged between every two insulation wire cores, and one end, far away from the supporting tube, of each cavity dividing plate is connected with the inner wall of the middle protective layer.

Through adopting above-mentioned technical scheme, divide the cavity board to form the support between stay tube and the middle protective layer, make the holding power of the inside structure of whole cable stronger, middle protective layer is difficult for taking place deformation and extrudees the insulation core.

The present invention may be further configured in a preferred embodiment as: and arc plates bent towards the direction of the insulated wire cores are arranged on two sides of each insulated wire core, one side of each arc plate is connected to the inner wall of the inner protective layer, and the other side of each arc plate is connected to the side wall of the cavity dividing plate.

Through adopting above-mentioned technical scheme, the arc further carries on spacingly to insulating sinle silk, and when the outside of cable received extrusion collision, the arc supported insulating sinle silk's outer wall, supported insulating sinle silk, the difficult removal that takes place the position of insulating sinle silk.

The present invention may be further configured in a preferred embodiment as: the outer wall of insulating sinle silk is equipped with a plurality of outside bellied sand grips, and the sand grip extends along the axis direction of insulating sinle silk.

Through adopting above-mentioned technical scheme, the further outer wall to insulating sinle silk of sand grip supports the protection, makes insulating sinle silk's location more stable.

The present invention may be further configured in a preferred embodiment as: the cavity plate is made of a signal shielding material.

Through adopting above-mentioned technical scheme, divide the cavity board to have the function of shielding signal, can make the interference of each between the insulation core reduce, improve the transmission efficiency of signal.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the outer protection layer is internally provided with a cavity, air flows through the cavity, when the outside of the cable is impacted or pressed, the outer wall of the outer protection layer is firstly extruded, the cavity can be extruded due to the existence of the cavity, and the degree of deformation of the outer protection layer can be larger, so that the cable can bear larger impact force and is not easy to damage;

2. the cavity separating plate supports the supporting tube and the middle protective layer, so that the supporting force of the structure inside the whole cable is stronger, and the middle protective layer is not easy to deform and extrude the insulated wire cores.

Drawings

Fig. 1 is a schematic cross-sectional structure of the cable in this embodiment.

Fig. 2 is a schematic view of the overall structure of the cable in this embodiment.

Fig. 3 is a schematic structural diagram of the outer passivation layer and the supporting plate in this embodiment.

In the figure, 1, an insulated wire core; 11. a convex strip; 2. an intermediate protective layer; 21. foaming the insulating layer; 22. a conductor shield layer; 23. a glass fiber layer; 24. a moisture barrier film; 3. an outer protective layer; 31. a cavity; 32. a support plate; 33. a through hole; 4. supporting a tube; 5. a cavity dividing plate; 6. an arc-shaped plate; 7. and (4) nylon filler.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1, for the utility model discloses a cable that crashworthiness is good, including three parallel arrangement's insulation core 1, three insulation core 1 wraps up respectively around has middle protective layer 2, and the outer wall parcel of middle protective layer 2 has outer protective layer 3, and middle protective layer 2 and outer protective layer 3 constitute cable structure jointly and protect insulation core 1.

As shown in fig. 1 and fig. 2, be equipped with sand grip 11 on the outer wall of insulated wire core 1, sand grip 11 extends along insulated wire core 1's axis direction, and one side that insulated wire core 1 was kept away from to sand grip 11 is arc, and sand grip 11 has strengthened insulated wire core 1 and has had more stable to the bearing capacity of pressure and make insulated wire core 1's location, and difficult emergence is shifted.

As shown in fig. 1 and fig. 2, a support tube 4 is arranged in the middle of the three insulated wire cores 1, the outer wall of the support tube 4 is abutted to the outer wall of the insulated wire cores 1, and the support tube 4 is parallel to the insulated wire cores 1. Be connected with three minute chamber board 5 on the outer wall of stay tube 4, one side that minute chamber board 5 kept away from stay tube 4 is connected with the inner wall of middle protective layer 2, and minute chamber board 5 centers on the lateral wall evenly distributed of stay tube 4, and every minute chamber board 5 sets up between every two insulation core 1, places every insulation core 1 in solitary space, makes can not direct contact extrusion each other between every insulation core 1. The cavity separating plate 5 is made of materials capable of shielding signals, the cavity separating plate 5 can reduce mutual signal interference among the insulated wire cores 1, and the transmission efficiency of the signals is improved.

As shown in fig. 1 and fig. 2, arc 6 is installed respectively to every insulation core 1's both sides, arc 6 extends along insulation core 1's axis direction, a pair of arc 6 is buckled towards the direction of insulation core 1 rather than being close to, one side of arc 6 and the fixed opposite side of lateral wall of minute cavity board 5 and the interior wall connection of middle protective layer 2, arc 6 is further fixes a position reinforcing to insulation core 1, when the outer wall of cable receives the striking extrusion, 8 outside convex one sides of arc are in the extrusion of 1 butt of insulation core, form the protection to insulation core 1.

As shown in fig. 1 and 2, the middle protective layer 2 includes a foamed insulating layer 21 connected to the cavity dividing plate 5, and the foamed insulating layer 21 is an insulating layer formed by foaming according to a physical foaming principle, and further insulates the insulated wire core 1.

As shown in fig. 1 and fig. 2, the outer wall of the foamed insulating layer 21 is wrapped by a conductor shielding layer 22, the conductor shielding layer 22 is made of a semiconductive material, polyethylene is used as a base material, and carbon black is added, the conductor shielding layer 22 can prevent a line from radiating electromagnetic energy outwards, and can avoid interference signals from entering the inner insulating wire core 1 as much as possible, so that loss of the cable during signal transmission is reduced.

As shown in fig. 1 and fig. 2, the outer wall of the conductor shielding layer 22 is wrapped by a glass fiber layer 23, and the glass fiber layer 23 has good insulating property and heat resistance, and functions as fire-proof insulation.

As shown in fig. 1 and fig. 2, a moisture-proof film 24 is arranged on the outer side of the glass fiber layer 23, and the moisture-proof film 24 protects the insulated wire core 1, so that moisture infiltration is reduced as much as possible, and the working performance of the cable is affected.

As shown in fig. 1 and fig. 1, nylon filler 7 is filled between the intermediate protective layer 2 and the insulated wire core 1.

As shown in fig. 1 and 2, the outer protective layer 3 wraps the outer wall of the glass fiber layer 23, a plurality of cavities 31 are formed in the outer protective layer 3, the cross sections of the cavities 31 are oval, the cavities 31 are uniformly distributed around the three insulated wire cores 1 along the axis of the cable, the cavities 31 extend along the axis direction of the insulated wire cores 1, and the cavities 31 extend through the two ends of the whole cable. When receiving external collision or extrusion of cable, the outer wall of outer protective layer 3 at first receives the extrusion, because the existence of cavity 31, cavity 31 can receive the extrusion, and the degree that outer protective layer 3 takes place deformation can be bigger to bear bigger impact and be difficult for making the impaired fracture of cable.

As shown in fig. 2 and 3, a plurality of support plates 32 are installed in the cavity 31, the support plates 32 are installed along the radial direction of the cable, the outer wall of each support plate 32 is fixed on the inner wall of the cavity 31, and the support plates 32 support the inside of the cavity 31, so that the cavity 31 is more stable in structure, stronger in pressure resistance and not easy to deform. Be equipped with a plurality of through-holes 33 on the backup pad 32, through-hole 33 makes the gas in cavity 31 can wholly circulate, makes the heat dissipation condition of whole cable keep good, can not be because local heat suddenly rises unable effluvium to make backup pad 32 can take place certain deformation when the emergence collision extrusion, difficult fracture damage.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (8)

1. The utility model provides a cable that crashworthiness is good, includes a plurality of insulation core (1), its characterized in that: the insulation wire core (1) is wrapped by the middle protective layer (2) and the outer protective layer (3), a cavity (31) is arranged inside the outer protective layer (3), and the cavity (31) surrounds the insulation wire core (1) and extends along the axial direction of the insulation wire core (1).

2. The cable with good anti-collision performance according to claim 1, wherein: a supporting plate (32) for dividing the cavity (31) into a plurality of chambers is arranged in the middle of each cavity (31).

3. The cable with good anti-collision performance according to claim 2, wherein: the supporting plate (32) is provided with a plurality of through holes (33).

4. The cable with good anti-collision performance according to claim 1, wherein: supporting tubes (4) are arranged among the insulating wire cores (1), and the outer walls of the supporting tubes (4) are abutted to the outer walls of the insulating wire cores (1).

5. The cable with good anti-collision performance according to claim 4, wherein: the outer wall of the supporting tube (4) is connected with cavity dividing plates (5), the cavity dividing plates (5) are arranged between every two insulation wire cores (1), and one end, far away from the supporting tube (4), of each cavity dividing plate (5) is connected with the inner wall of the middle protective layer (2).

6. The cable with good anti-collision performance according to claim 5, wherein: and arc plates (6) bent towards the direction of the insulated wire cores (1) are arranged on two sides of each insulated wire core (1), one side of each arc plate (6) is connected to the inner wall of the inner protective layer, and the other side of each arc plate is connected to the side wall of the cavity dividing plate (5).

7. The cable with good anti-collision performance according to claim 1, wherein: the outer wall of insulating sinle silk (1) is equipped with a plurality of outside bellied sand grips (11), and sand grip (11) extend along the axis direction of insulating sinle silk (1).

8. The cable with good anti-collision performance according to claim 5, wherein: the cavity dividing plate (5) is made of a signal shielding material (5).

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