CN212990744U

CN212990744U - Novel high-speed transmission anti-freezing cable

Info

Publication number: CN212990744U
Application number: CN202022181997.9U
Authority: CN
Inventors: 牛文凯; 张时雪
Original assignee: Shenzhen Huatianda Information Technology Co ltd
Current assignee: Shenzhen Huatianda Information Technology Co ltd
Priority date: 2020-09-28
Filing date: 2020-09-28
Publication date: 2021-04-16
Anticipated expiration: 2030-09-28

Abstract

The utility model relates to a novel high-speed transmission antifreeze cable, including the restrictive coating of a plurality of cable cores, parcel a plurality of cable cores and be located the filling layer between cable core and the restrictive coating, the restrictive coating that the restrictive coating was made for cold-resistant material, be provided with in the filling layer and be used for absorbing the thermal heat dissipation layer of wire, the heat dissipation layer falls into the first filling layer of parcel cable core and the outer second filling layer of heat dissipation layer with the filling layer, be provided with the heat preservation between restrictive coating and the second filling layer. The application has the effect of strong cold resistance and freeze resistance.

Description

Novel high-speed transmission anti-freezing cable

Technical Field

The application relates to the field of cables, in particular to a novel high-speed transmission anti-freezing cable.

Background

In northern and western areas of China, the low temperature time is long, the temperature difference between the morning and the evening is large, and particularly in winter, the outdoor temperature of the northeast area can reach about minus 50 ℃.

When the ordinary cable is constructed, laid or operated under the condition, phenomena such as cracking of a cable insulating layer and a sheath can easily occur, transmission of electric energy of the cable is not facilitated, and the service life of the cable is shortened.

With respect to the related art in the above, the inventors consider that the cable is poor in cold resistance.

SUMMERY OF THE UTILITY MODEL

In order to improve the poor defect of cable cold resistance, this application provides a novel high-speed transmission antifreeze cable.

The application provides a novel high-speed transmission cable that prevents frostbite adopts following technical scheme:

the utility model provides a novel high-speed transmission antifreeze cable, includes the restrictive coating of a plurality of cable cores of parcel and is located the filling layer between cable core and the restrictive coating, the restrictive coating that the restrictive coating was made for cold-resistant material, be provided with the thermal dissipation layer of being convenient for transmit cable core heat in the filling layer, the thermal dissipation layer falls into the first filling layer of parcel cable core and the outer second filling layer of thermal dissipation layer with the filling layer, be provided with the heat preservation between restrictive coating and the second filling layer.

By adopting the technical scheme, firstly, the problem of cracking of the cable sheath in a low-temperature environment can be solved by the sheath layer made of the cold-resistant material, the heat generated by the cable core can be timely diffused to other parts in the cable by the heat dissipation layer, and the heat dissipation can be reduced by the heat preservation layer, so that the heat in the cable can be conveniently maintained; secondly, the heat dissipation layer is arranged in the filling layer, so that the problems that the filling layer is too thick and the heat transfer effect of the heat dissipated by the cable core is poor can be solved.

Optionally, the cable core sequentially includes a conductor, a shielding layer, and a heat conducting insulating layer from inside to outside.

Through adopting above-mentioned technical scheme, at first, set up the shielding layer between conductor and heat conduction insulating layer, can shield the electromagnetic field that the conductor produced in heat conduction insulating layer, secondly, set up the heat transfer that heat conduction insulating layer is convenient for the conductor to produce and to in first filling layer.

Optionally, the first filling layer is made of a flame retardant material.

Through adopting above-mentioned technical scheme, can improve the current increase, the heat that the short circuit arouses in the cable and increase, and then produce dangerous condition.

Optionally, a plurality of first protruding portions arranged along the length direction of the cable are circumferentially arranged on the inner circumferential surface of the heat dissipation layer, and a first groove used for embedding the first protruding portions is formed in the first filling layer; the cable is characterized in that a plurality of second protruding parts arranged along the length direction of the cable are circumferentially arranged on the outer peripheral surface of the heat dissipation layer, and a second groove used for embedding the second protruding parts is formed in the second filling layer.

By adopting the technical scheme, firstly, the contact area between the heat dissipation layer and the first filling layer is increased by arranging the first bulge part, and the heat absorption capacity of the heat dissipation layer from the first filling layer can be improved; secondly, set up the area of contact that the second bellying has increased heat dissipation layer and second filling layer, can promote the heat dissipation layer to the interior ability of transmitting heat of second filling layer.

Optionally, the radial cross sections of the first groove and the second groove are dovetail grooves, and the first protruding portion and the second protruding portion are respectively matched with the shapes of the first groove and the second groove.

Through adopting above-mentioned technical scheme, can improve and take place relative slip, produce the clearance, influence heat transfer's the condition by the exogenic action between first filling layer, heat dissipation layer and the second filling layer, strengthened the connection compactness of three.

Optionally, a plurality of anti-pulling strips are arranged in the first filling layer along the length direction of the cable.

By adopting the technical scheme, the axial tensile strength of the cable is enhanced, the condition that the cable is fragile and large in low-temperature environment and easy to axially break under the action of external force is improved.

Optionally, a plurality of third protruding portions are arranged on the outer peripheral surface of the anti-pulling strip at intervals along the length direction of the anti-pulling strip, and third grooves for embedding the third protruding portions are formed in the first filling layer.

Through adopting above-mentioned technical scheme, the third bellying card is established in the third recess, has strengthened the relation of being connected of anti brace and first filling layer for the tensile strip is difficult to take place the ascending relative slip of cable axial with the cable.

Optionally, a reinforcing layer is arranged between the sheath layer and the heat insulation layer.

Through adopting above-mentioned technical scheme, set up the bulk strength that the enhancement layer has strengthened the cable, strengthened the ability of cable resistance to deformation in being in low temperature environment.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the cold-resistant and anti-freezing capacity of the cable can be improved by arranging the sheath layer made of the cold-resistant material;

2. by arranging the heat-conducting insulating layer, the heat-radiating layer and the heat-insulating layer, heat generated by the conductor in the power transmission process can be fully utilized, and the cold resistance and the freezing resistance of the cable are enhanced;

3. through setting up brace, enhancement layer, can strengthen cable strength, promoted the ability that the cable resisted the deformation.

Drawings

Fig. 1 is a radial cross-sectional view of a cable embodying the internal structure of the cable in an embodiment of the present application.

Description of reference numerals: 1. a sheath layer; 2. a reinforcing layer; 3. a heat-insulating layer; 4. a filling layer; 41. a heat dissipation layer; 411. a first boss portion; 412. a second boss portion; 42. a first filling layer; 43. a second filling layer; 44. anti-bracing; 441. a third boss portion; 5. a cable core; 51. a thermally conductive insulating layer; 52. a shielding layer; 53. a conductor.

Detailed Description

The present application is described in further detail below with reference to fig. 1.

The embodiment of the application discloses novel high-speed transmission anti-freezing cable. Referring to fig. 1, a novel high-speed transmission anti-freezing cable comprises a sheath layer 1 made of silicon rubber, a heat preservation layer 3 made of glass cotton, a filling layer 4 and three cable cores 5 embedded in the filling layer 4 from outside to inside in sequence, wherein the sheath layer 1 made of silicon rubber has low temperature resistance, oxidation resistance, ablation resistance, irradiation resistance, shock resistance, moisture resistance and good electrical insulation performance, and can effectively improve the cold resistance and the freezing resistance of the cable.

The cable core 5 includes the heat conduction insulating layer 51 that high density polyethylene material made, shielding layer 52 and the conductor 53 that the tinned copper wire was made from outside to inside in proper order, and in the cable transmission of electricity process, shielding layer 52 shields the electromagnetic field that conductor 53 produced in heat conduction insulating layer 51, passes through the electric current and produces heat in the conductor 53, and the heat spreads everywhere in the cable through heat conduction insulating layer 51, and the heat preservation 3 that the glass cotton was made can reduce the heat and scatter to the external environment in, the inside thermal maintenance of cable of being convenient for.

In order to enhance the heat transfer capability inside the cable, a heat dissipation layer 41 for facilitating heat transfer of the cable core 5 is arranged in the filling layer 4, the heat dissipation layer 41 divides the filling layer 4 into a first filling layer 42 for wrapping the cable core 5 and a second filling layer 43 outside the heat dissipation layer 41, meanwhile, a plurality of first protrusions 411 arranged along the length direction of the cable are circumferentially arranged on the inner circumferential surface of the heat dissipation layer 41, first grooves for embedding the first protrusions 411 are arranged on the first filling layer 42, the contact area between the heat dissipation layer 41 and the first filling layer 42 is increased by arranging the first protrusions 411, the heat absorption capability of the heat dissipation layer 41 from the first filling layer 42 can be improved, a plurality of second protrusions 412 arranged along the length direction of the cable are circumferentially arranged on the outer circumferential surface of the heat dissipation layer 41, second grooves for embedding the second protrusions 412 are arranged on the second filling layer 43, and the contact area between the heat dissipation layer 41 and the second filling layer 43 is increased by arranging the second protrusions 412, the ability of the heat dissipation layer 41 to transfer heat into the second filler layer 43 can be improved.

Relative sliding, clearance generation and influence on heat transfer easily occur among the first filling layer 42, the heat dissipation layer 41 and the second filling layer 43 under the action of external force, so that the first groove and the second groove are provided as dovetail grooves, and the first protruding part 411 and the second protruding part 412 are respectively matched with the shapes of the first groove and the second groove, so that the connection tightness of the first filling layer, the heat dissipation layer and the second filling layer is enhanced.

In order to improve the problem that current is increased and heat is increased and further danger is generated when the inside of the cable is short-circuited, the first filling layer 42 made of a flame-retardant material is arranged, and the cable can play a certain protection role when the inside of the cable is short-circuited and the temperature is increased.

In order to enhance the axial tensile strength of the cable, the first filling layer 42 is internally provided with the tensile bars 44 made of three tensile fiber bundles along the length direction of the cable, so that the condition that the cable is fragile and large in a low-temperature environment and easy to axially break under the action of external force can be improved, meanwhile, the outer peripheral surface of the tensile bars 44 is provided with a plurality of third protrusions 441 at intervals along the length direction of the tensile bars 44, third grooves used for embedding the third protrusions 441 are formed in the first filling layer 42, the connection relation between the tensile bars 44 and the first filling layer 42 is enhanced, and the tensile bars 44 are not easy to slide relative to the cable in the axial direction.

Finally, in order to strengthen the overall strength of the cable, a reinforcing layer 2 made of carbon fibers is arranged between the sheath layer 1 and the heat preservation layer 3, and the carbon fibers have the characteristics of light weight and high strength, so that the strength of the cable can be increased, and the deformation resistance of the cable in a low-temperature environment can be improved.

The implementation principle of the novel high-speed transmission anti-freezing cable in the embodiment of the application is as follows: in the cable transmission process, through electric current and production of heat in the conductor 53, the heat passes through heat conduction insulating layer 51 earlier and transmits first filling layer 42, then fully transmits second filling layer 43 through heat dissipation layer 41, heat preservation 3 can reduce thermal scattering and disappearing, be favorable to the thermal maintenance in the cable, the bulk strength of cable has then been strengthened to enhancement layer 2 and tensile strip 44, outermost silicon rubber sheath layer 1 is low temperature resistant, can improve the condition of sheath fracture and prolong the life of cable under the low temperature.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a novel high-speed transmission antifreeze cable, includes restrictive coating (1) of a plurality of cable cores (5), parcel a plurality of cable cores (5) and is located filling layer (4) between cable core (5) and restrictive coating (1), its characterized in that: restrictive coating (1) for cold-resistant material making restrictive coating (1), be provided with heat dissipation layer (41) convenient to transmit cable core (5) heat in filling layer (4), heat dissipation layer (41) fall into first filling layer (42) and the outer second filling layer (43) of heat dissipation layer (41) of parcel cable core (5) with filling layer (4), be provided with between restrictive coating (1) and second filling layer (43) heat preservation (3).

2. The novel high-speed transmission anti-freezing cable according to claim 1, characterized in that: the cable core (5) sequentially comprises a conductor (53), a shielding layer (52) and a heat conduction insulating layer (51) from inside to outside.

3. The novel high-speed transmission anti-freezing cable according to claim 1, characterized in that: the first filling layer (42) is a first filling layer (42) made of a flame retardant material.

4. The novel high-speed transmission anti-freezing cable according to claim 3, wherein: a plurality of first protruding parts (411) distributed along the length direction of the cable are circumferentially arranged on the inner circumferential surface of the heat dissipation layer (41), and a first groove used for embedding the first protruding parts (411) is formed in the first filling layer (42); the peripheral surface of the heat dissipation layer (41) is circumferentially provided with a plurality of second protruding portions (412) distributed along the length direction of the cable, and the second filling layer (43) is provided with a second groove used for embedding the second protruding portions (412).

5. The novel high-speed transmission anti-freezing cable according to claim 4, wherein: the radial cross sections of the first groove and the second groove are dovetail grooves, and the first protruding part (411) and the second protruding part (412) are matched with the shapes of the first groove and the second groove respectively.

6. The novel high-speed transmission anti-freezing cable according to claim 5, wherein: and a plurality of anti-pulling strips (44) are arranged in the first filling layer (42) along the length direction of the cable.

7. The novel high-speed transmission anti-freezing cable according to claim 6, wherein: a plurality of third protrusions (441) are arranged on the outer peripheral surface of the anti-bracing piece (44) at intervals along the length direction of the anti-bracing piece (44), and third grooves used for embedding the third protrusions (441) are formed in the first filling layer (42).

8. The novel high-speed transmission anti-freezing cable according to claim 1, characterized in that: and a reinforcing layer (2) is arranged between the sheath layer (1) and the heat-insulating layer (3).