CN209822355U - Organosilicon high-thermal-conductivity insulated cable - Google Patents

Abstract

The utility model provides an organosilicon high thermal conductivity insulated cable, which comprises an electric conduction inner core, an organosilicon thermal conductivity insulation protective layer, a metal braid layer, a flame retardant layer, a flexible protective layer and a high thermal conductivity insulation plastic layer; wherein, the outer of the electric conduction inner core is wrapped with an organic silicon heat conduction insulation protective layer; the metal braid is wrapped outside the organic silicon heat-conducting insulating protective layer; the outer ring of the metal braid layer is wrapped with a flame retardant layer; flexible protective layers and high-thermal-conductivity insulating plastic layers are uniformly arranged on the outer ring of the flame-retardant layer at intervals; the length ratio of the single-section flexible protective layer to the single-section high-thermal-conductivity insulating plastic layer is 1:3, so that the organic silicon high-thermal-conductivity insulating cable with excellent heat conduction and heat dissipation effects is provided.

Description

Organosilicon high-thermal-conductivity insulated cable

Technical Field

The utility model relates to the technical field of cables, especially, relate to a high heat conduction insulated cable of organosilicon.

Background

A cable is generally a rope-like cable made up of several or groups of conductors (at least two in each group) twisted together, with the conductors of each group being insulated from one another and often twisted around a center, and surrounded entirely by a highly insulating covering, and with the characteristics of internal current conduction and external insulation.

After a traditional cable is electrified, the traditional cable generates heat due to resistance of the traditional cable, the heat emitted by the cable is generally discharged out of a cable body in a heat conduction manner, but in order to ensure the overall strength of the existing cable, the heat dissipation effect of a protective layer of the existing cable is extremely poor, so that the internal temperature is too high, and for a pure metal cable inner core, the temperature is too high, the resistance of the inner core is increased, and the power transmission efficiency is greatly reduced; and in some cold areas that often snows, the cable hangs in the eminence, has snow, and snow is untimely to be eliminated, leads to cable self bearing to increase, has increased the danger that the cable collapses.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an organic silicon high heat conduction insulated cable that heat conduction radiating effect is excellent.

In order to achieve the purpose, the utility model provides an organosilicon high thermal conductivity insulated cable, which comprises an electric conduction inner core, an organosilicon thermal conductivity insulation protective layer, a metal braid layer, a flame retardant layer, a flexible protective layer and a high thermal conductivity insulation plastic layer; wherein the organosilicon heat-conducting insulating protective layer is wrapped outside the electric-conducting inner core; the metal braid layer is wrapped outside the organic silicon heat-conducting insulating protective layer; the outer ring of the metal braid layer is wrapped with the flame-retardant layer; the flexible protective layer and the high-heat-conductivity insulating plastic layer are uniformly arranged on the outer ring of the flame-retardant layer at intervals; the length ratio of the single section of the flexible protective layer to the single section of the high-thermal-conductivity insulating plastic layer is 1: 3.

Preferably, the conductive inner core is a semiconductor conductive inner core.

Preferably, the metal braiding layer is a copper wire mesh formed by braiding copper wires.

Preferably, the organosilicon high thermal conductivity insulated cable comprises three electrically conductive inner cores; the organosilicon heat-conducting insulating protective layer is wrapped outside each electric-conducting inner core; the three conductive inner cores are positioned and bound together through the metal braided layer.

Preferably, the flame retardant layer is a mica layer.

Preferably, the flexible protective layer is an insulating rubber layer; the insulating rubber layer is connected with the connecting end of the high-heat-conductivity insulating plastic layer in an integrated mode through hot melting.

Compared with the prior art, the utility model has the advantages that: the utility model discloses an organosilicon heat conduction insulating protective layer wraps up electrically conductive inner core, organosilicon heat conduction insulating protective layer is when guaranteeing insulating effect, good heat conductivility has, the high heat conduction insulating plastic layer of outer lane is compared and is had good heat conductivility in traditional outer protective layer, cooperation between layer upon layer, make the inside heat of cable can obtain the maximum volatilizing, in some chilly areas, to the condition such as the snow that freezes on the cable, the cable can rely on the resistance of self to generate heat, the heat conduction of protective layer melts snow and ice sheet, the life of extension cable.

Meanwhile, the high-heat-conduction insulating plastic layer has certain hardness compared with a traditional skin protective layer, can effectively prevent birds from pecking, avoids the cable from being inclined and damaged outside, avoids the cable from being arranged due to the fact that the high-heat-conduction insulating plastic layer is hard and cannot be rotated due to the fact that the high-heat-conduction insulating plastic layer is hard, and provides the function of rotating and arranging one section of cable.

Drawings

Fig. 1 is a schematic view of an overall structure of an organosilicon high thermal conductivity insulated cable according to an embodiment of the present invention;

FIG. 2 is a schematic sectional view of an embodiment of an insulated cable with high thermal conductivity of organic silicon

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be further described below.

As shown in fig. 1 and fig. 2, the utility model provides an organosilicon high thermal conductivity insulated cable, which comprises an electric conduction inner core 1, an organosilicon thermal conductivity insulation protective layer 2, a metal braid layer 3, a flame retardant layer 4, a flexible protective layer 5 and a high thermal conductivity insulation plastic layer 6; wherein, the outer of the electric core 1 is wrapped with an organic silicon heat conduction insulation protective layer 2; the organic silicon heat-conducting insulating protective layer 2 is wrapped with a metal braid layer 3; the outer ring of the metal braid layer 3 is wrapped with a flame retardant layer 4; flexible protective layers 5 and high-thermal-conductivity insulating plastic layers 6 are uniformly arranged at intervals on the outer ring of the flame-retardant layer 4; the length ratio of the single-section flexible protective layer 5 to the single-section high-thermal-conductivity insulating plastic layer 6 is 1:3, so that the whole heat dissipation effect of the cable is guaranteed, and a certain flexible reversing function is provided for the cable.

In the embodiment, the conductive core 1 is a semiconductor conductive core 1, and the internal resistance is smaller at higher temperature.

In this embodiment, the metal braid 3 is the copper wire net that the copper wire was woven and is formed, when guaranteeing the parcel performance, also provides certain interference signal shielding's effect.

In the present embodiment, the silicone high thermal conductivity insulated cable includes three electrically conductive cores 1; an organic silicon heat-conducting insulating protective layer 2 is wrapped outside each electric-conducting inner core 1; the three conductive inner cores 1 are positioned and bound together through the metal braid 3.

In this embodiment, the flame retardant layer 4 is a mica layer, which has excellent heat conduction effect, ignition point and heat dissipation effect.

In the present embodiment, the flexible protection layer 5 is an insulating rubber layer; the connecting ends of the insulating rubber layer and the high-heat-conductivity insulating plastic layer 6 are integrally connected through hot melting.

In this embodiment, the utility model discloses an organosilicon heat conduction insulating protective layer 2 wraps up electrically conductive inner core 1, organosilicon heat conduction insulating protective layer 2 is when guaranteeing insulating effect, good heat conductivility has, outer lane high heat conduction insulating plastic layer 6 compares and has good heat conductivility in traditional outer protective layer, cooperation between layer upon layer, make the inside heat of cable can obtain the maximum volatilization, in some chilly areas, to the condition such as the snow that freezes on the cable, the cable can rely on the resistance of self to generate heat, the heat conduction of protective layer melts snow and ice sheet, the life of extension cable.

Meanwhile, compared with a traditional skin protective layer, the high-thermal-conductivity insulating plastic layer 6 has certain hardness, can effectively prevent birds from pecking, and avoids the cable from being inclined and damaged outside, the flexible protective layer 5 and the high-thermal-conductivity insulating plastic layer 6 are in crossed layout, so that the cable is prevented from being arranged in a mode that the hardness of the high-thermal-conductivity insulating plastic layer 6 is too hard and the flexible protective layer 5 has the function of arranging the cable in a steering mode.

In this embodiment, the preparation method of the silicone heat-conducting insulating protective layer 2 includes:

A. uniformly mixing the components contained in the organic silicon heat-conducting and insulating composition according to the proportion to obtain a mixture;

B. curing the mixture at 40-90 ℃ to obtain a primary cured material;

C. heating to 110-250 ℃ to vulcanize the primary curing material to obtain a heat-conducting insulating material;

the organic silicon heat-conducting and insulating composition consists of the following components:

base polymer: is a linear organopolysiloxane containing two or more silicon-bonded alkenyl groups, and has a viscosity of 50 to 50000mpa · s at 25 ℃;

a thermally conductive filler;

a crosslinking agent: is an organopolysiloxane containing three or more hydrogen groups bonded to silicon, and has a viscosity of 10-50000mpa · s at 25 ℃;

a platinum catalyst and a vulcanizing agent, wherein the vulcanizing agent is organic peroxide;

the ratio of the molar amount of silicon-bonded alkenyl groups in the base polymer to the molar amount of silicon-bonded hydrogen groups in the crosslinking agent is greater than 1.

In the embodiment, the high thermal conductive insulating plastic layer 6 comprises a coupling agent, an antioxidant, a dispersant, a flame retardant and a processing aid; the high-thermal-conductivity insulating plastic comprises the following components in parts by weight: 100-200 parts of plastic insulating matrix, 800 parts of heat-conducting insulating filler, 2-50 parts of coupling agent, 1-5 parts of antioxidant, 1-10 parts of dispersing agent, 20-50 parts of reinforcing agent and 0.5-5 parts of processing aid; the plastic insulating matrix is styrene-butadiene-acrylonitrile copolymer; the coupling agent is unsaturated silane coupling agent; the heat-conducting insulating filler is aluminum nitride powder treated by a coupling agent; the reinforcing agent is glass fiber.

The above description is only for the preferred embodiment of the present invention, and does not limit the present invention. Any technical personnel who belongs to the technical field, in the scope that does not deviate from the technical scheme of the utility model, to the technical scheme and the technical content that the utility model discloses expose do the change such as the equivalent replacement of any form or modification, all belong to the content that does not break away from the technical scheme of the utility model, still belong to within the scope of protection of the utility model.

Claims (6)

1. An organosilicon high-thermal-conductivity insulated cable is characterized by comprising an electric conduction inner core, an organosilicon thermal-conductivity insulating protective layer, a metal braid layer, a flame-retardant layer, a flexible protective layer and a high-thermal-conductivity insulating plastic layer; wherein the organosilicon heat-conducting insulating protective layer is wrapped outside the electric-conducting inner core; the metal braid layer is wrapped outside the organic silicon heat-conducting insulating protective layer; the outer ring of the metal braid layer is wrapped with the flame-retardant layer; the flexible protective layer and the high-heat-conductivity insulating plastic layer are uniformly arranged on the outer ring of the flame-retardant layer at intervals; the length ratio of the single section of the flexible protective layer to the single section of the high-thermal-conductivity insulating plastic layer is 1: 3.

2. The insulated cable of claim 1, wherein the electrically conductive core is a semiconductive electrically conductive core.

3. The insulated cable of claim 1, wherein the metal braid is a copper wire mesh woven with copper wires.

4. The insulated cable of claim 1, wherein the insulated cable comprises three electrically conductive cores; the organosilicon heat-conducting insulating protective layer is wrapped outside each electric-conducting inner core; the three conductive inner cores are positioned and bound together through the metal braided layer.

5. The insulated cable of claim 1, wherein the flame retardant layer is a mica layer.

6. The insulated cable with high thermal conductivity and organic silicon according to claim 1, wherein the flexible protective layer is an insulating rubber layer; the insulating rubber layer is connected with the connecting end of the high-heat-conductivity insulating plastic layer in an integrated mode through hot melting.