A double shielded silicone rubber cable

Abstract

The application relates to the technical field of cables, and discloses a double-layer shielding silicon rubber cable, characterized by comprising an outer sheath, a protection layer is arranged in the outer sheath, a winding shielding tape is arranged at the gap between the protection layer and the outer sheath, an interwoven shielding net is arranged in the protection layer, an inner sheath is arranged in the interwoven shielding net, and an electric core assembly is arranged in the inner sheath. The double-layer shielding silicon rubber cable realizes double-layer protection of the cable through the arranged outer sheath and inner sheath, realizes double-layer protection and shields the interference from the outside and the radiation to the outside through the winding shielding tape and the interwoven shielding net, and the shielding net with the staggered structure can realize heat gap conduction while realizing protection and shielding of the cable, so that the silicon rubber cable is effectively protected from the outside and balanced in heat dissipation.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cables, in particular to a double-layer shielding silicone rubber cable. BACKGROUND

[0002] With the continuous development of information networks, information communication is becoming more and more frequent, and the information exchange capacity is also becoming larger and larger. Data cables are important transmission media for network information, facing new technical changes and innovations. On the one hand, the transmission rate needs to be improved to meet the transmission and exchange of large-capacity information, and on the other hand, the transmission stability needs to be improved to ensure the quality of information transmission. Silicone rubber cables have excellent high-voltage resistance, low-temperature resistance, electrical insulation, and chemical stability, and good softness, and are widely used in household appliances, medical equipment, automobile parts and many other occasions, and have a large market demand.

[0003] At present, the silicone rubber cable itself is easy to break during production or use, and the internal heat dissipation performance is weak. During power transmission, the internal battery will generate a large amount of heat conduction to the internal rubber filling part, resulting in uneven heat conduction, and the internal heat conduction of the silicone rubber material is not timely, which will cause thermal expansion and cold contraction effect, resulting in easy cracking of the cable. Because the cable is generally buried in the soil, the temperature of the outer layer is low, and the temperature of the internal battery will gradually increase, which will gradually expand the internal battery. At this time, the temperature of the outer sheath is low and the temperature of the internal battery part is high, which will cause the heat conduction of the two to be not timely, and the cable will be partially expanded and even cracked. Therefore, a double-layer shielding silicone rubber cable is proposed to solve the above problems. SUMMARY

[0004] (I) Technical problems solved

[0005] In view of the deficiencies of the prior art, the present application provides a double-layer shielding silicone rubber cable, which solves the problem of low heat conduction of the heat generated by the battery in the silicone rubber cable during use, resulting in a certain temperature difference between the sheath and the core. With long-term use, the cable will continuously expand and contract, resulting in reduced service life and damage.

[0006] (II) Technical solutions

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a double-layer shielded silicone rubber cable, characterized in that it includes an outer sheath, a protective layer is provided inside the outer sheath, a wrapped shielding tape is provided in the gap between the protective layer and the outer sheath, an interwoven shielding net is provided inside the protective layer, an inner sheath is provided inside the interwoven shielding net, a battery core assembly is provided inside the inner sheath; the battery core assembly includes a filling rubber ring, an insulating layer is provided inside the filling rubber ring, a plurality of copper conductors are provided inside the insulating layer, a steel needle is provided inside the filling rubber ring to prevent the filling rubber ring from deformation, and a plurality of the steel needles are provided with a heat conducting plate, and the heat conducting plate is stuck in the filling rubber ring.

[0008] Preferably, a plurality of conduction grooves are provided inside the filling rubber ring, a conduction belt is provided on the outer sleeve of the copper conductor, the surface of the conduction belt is connected to steel needles connected to a plurality of heat conducting sheets, and the heat generated by the copper conductor is radiated to the conduction belt and transferred to the space of the conduction groove through the heat conducting sheet, and then evenly distributed on the inner sheath.

[0009] Preferably, a plurality of slots are provided inside the filling rubber ring, a plurality of heat conducting sheets are provided, and the plurality of heat conducting sheets are fixed inside the slots.

[0010] Preferably, a gap groove for expansion protection is provided on the surface of the filling rubber ring, and a plurality of V-shaped grooves are further provided on the filling rubber ring, and elastic steel sheets are provided in the V-shaped grooves.

[0011] Preferably, the elastic steel sheet structure is in an arc-shaped U-shape, and the arc surface of the elastic steel sheet abuts against the inner wall of the inner sheath.

[0012] Preferably, the elastic steel sheets are arranged in sections, and a plurality of elastic steel sheets are distributed in a linear array with the center line of the filling rubber ring as the axis of symmetry, and a gap of 1 / 3 of the length of the elastic steel sheet exists between the plurality of elastic steel sheets.

[0013] Preferably, a plurality of round thin steel wires are arranged inside the interwoven shielding mesh, and the plurality of round thin steel wires are used to heat-shape the interwoven shielding mesh.

[0014] Preferably, a protective gap is provided inside the outer sheath, a circular hole is provided on the outer sheath, the protective gap is filled with liquid, and after the protective gap is filled with liquid, the circular hole is sealed with glue.

[0015] Preferably, a plurality of wrapping shielding tapes are provided, and the plurality of wrapping shielding tapes wrap the protective layer in a spirally staggered manner to seamlessly wrap the protective layer.

[0016] (3) Beneficial effects

[0017] Compared with the prior art, the double-layer shielding silicone rubber cable has the following beneficial effects:

[0018] 1. The double-layer shielding silicone rubber cable realizes double-layer protection of the cable through the outer sheath and the inner sheath, and realizes double-layer protection and shielding of the outer layer of the cable from interference and radiation by the winding shielding tape and the interlaced shielding net, and the interlaced shielding net can realize shielding and effective gap conduction of heat, thereby realizing effective external protection and internal balanced heat dissipation of the silicone rubber cable.

[0019] 2. The double-layer shielding silicone rubber cable can directly conduct the heat generated by the copper conductor to the sheet-shaped heat-conducting sheet, and the heat-conducting sheet is evenly distributed, so that the heat is evenly radiated outward until entering the inner sheath, thereby improving the balanced heat dissipation of the cable.

[0020] 3. The double-layer shielding silicone rubber cable can provide an expanding gap when the insulating layer expands due to heat generated by the copper conductor, thereby avoiding direct expansion to form a pressing stress state with the filling rubber ring, thereby improving the service life of the cable and avoiding the expansion and contraction of the cable for a long time. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a whole structure schematic diagram of the double-layer shielding silicone rubber cable proposed by the present application.

[0022] Figure 2 It is a whole structure schematic diagram of the double-layer shielding silicone rubber cable proposed by the present application.

[0023] Figure 3 It is a connection position structure schematic diagram of the interlaced shielding net of the double-layer shielding silicone rubber cable proposed by the present application.

[0024] Figure 4 It is an electric core assembly structure schematic diagram of the double-layer shielding silicone rubber cable proposed by the present application.

[0025] Figure 5 It is a structure schematic diagram of the filling rubber ring of the double-layer shielding silicone rubber cable proposed by the present application.

[0026] Figure 6 It is a cross-sectional structure schematic diagram of the outer sheath of the double-layer shielding silicone rubber cable proposed by the present application.

[0027] Figure 7 It is an outer sheath structure schematic diagram of the double-layer shielding silicone rubber cable proposed by the present application.

[0028] In the figure: 1, outer sheath; 101, protection gap; 2, winding shielding tape; 3, interlaced shielding net; 4, inner sheath; 5, electric core assembly; 501, filling rubber ring; 502, insulation layer; 503, steel needle; 504, heat conduction sheet; 505, copper conductor; 506, conduction tape; 507, conduction groove; 508, elastic steel sheet; 509, V-shaped groove; 510, gap groove; 511, clamping groove; 6, protective layer. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0030] Please refer to Figures 1-7 A double-layer shielding silicone rubber cable includes an outer sheath 1, the inner part of the outer sheath 1 is sleeved with a protective layer 6, a winding shielding tape 2 is arranged at the gap between the protective layer 6 and the outer sheath 1, the inner part of the protective layer 6 is sleeved with an interlaced shielding net 3, the inner part of the interlaced shielding net 3 is sleeved with an inner sheath 4, and the inner part of the inner sheath 4 is provided with an electric core assembly 5.

[0031] In the embodiment, the electric core assembly 5 includes a filling rubber ring 501, the inner part of the filling rubber ring 501 is provided with an insulation layer 502, the inner part of the insulation layer 502 is provided with a plurality of copper conductors 505, the inner part of the filling rubber ring 501 is provided with a steel needle 503 for preventing the filling rubber ring 501 from deforming, and a heat conduction sheet 504 is arranged on the plurality of steel needles 503 and clamped in the filling rubber ring 501. The heat conduction sheet 504 can conduct the heat of the copper conductor 505 from the inside to the outside of the insulation layer 502, avoiding direct heat transfer through the insulation layer 502. Since the material of the insulation layer 502 is generally rubber plastic material, the heat conduction and heat dissipation effect is not good, but the copper material of the heat conduction sheet 504 can effectively conduct the heat to the outside. The plurality of steel needles 503 can improve the strength of the heated insulation layer 502 and avoid softening after being heated.

[0032] Further, the inside of the filling rubber ring 501 is provided with a plurality of conduction grooves 507, the copper conductor 505 is provided with a conduction belt 506, the surface of the conduction belt 506 is connected with the steel needle 503 connected with the plurality of heat conduction sheets 504, the heat generated by the copper conductor 505 is radiated to the conduction belt 506 and transmitted to the space in the conduction groove 507 through the heat conduction sheet 504, and then evenly radiated on the inner sheath 4. When the copper conductor 505 is used for power transmission or operation, a certain amount of heat will be generated due to the effect of resistance, and the heat will be transmitted to the conduction belt 506, and the conduction belt 506 will transmit the heat to the plurality of heat conduction sheets 504, and then the heat conduction sheet 504 can transmit the heat to the gap groove 510 through the conduction groove 507, and then transmit it to the inner sheath 4, realize the balanced transmission of heat in turn, avoid the local expansion caused by the excessive local heat, improve the heat dissipation effect of the cable, and also improve the service life of the cable and reduce the internal rupture.

[0033] Further, the inside of the filling rubber ring 501 is provided with a plurality of conduction grooves 507, the copper conductor 505 is provided with a conduction belt 506, the surface of the conduction belt 506 is connected with the steel needle 503 connected with the plurality of heat conduction sheets 504, the heat generated by the copper conductor 505 is radiated to the conduction belt 506 and transmitted to the space in the conduction groove 507 through the heat conduction sheet 504, and then evenly radiated on the inner sheath 4. When the copper conductor 505 is used for power transmission or operation, a certain amount of heat will be generated due to the effect of resistance, and the heat will be transmitted to the conduction belt 506, and the conduction belt 506 will transmit the heat to the plurality of heat conduction sheets 504, and then the heat conduction sheet 504 can transmit the heat to the gap groove 510 through the conduction groove 507, and then transmit it to the inner sheath 4, realize the balanced transmission of heat in turn, avoid the local expansion caused by the excessive local heat, improve the heat dissipation effect of the cable, and also improve the service life of the cable and reduce the internal rupture.

[0034] In addition, the elastic steel sheet 508 is in an arc-shaped U-shaped structure, and the arc surface of the elastic steel sheet 508 abuts against the inner wall of the inner sheath 4. By setting the elastic steel sheet 508 in a U-shaped structure, because it has a certain elastic force, it can control the two filling rubber rings 501 to extrude the insulating layer 502 through the extrusion force, so that the gap groove 510 is in a closed state under normal conditions. If it is heated and expanded, the gap groove 510 will be gradually opened, and the expansion force will be transmitted to each elastic steel sheet 508, and the elastic steel sheet 508 can absorb the expansion force.

[0035] In addition, the elastic steel sheet 508 is segmented, and the plurality of elastic steel sheets 508 are arranged in an axial array with the center line of the rubber ring 501 as the axis of symmetry, and there is a gap of 1 / 3 of the length of the elastic steel sheet 508 between the plurality of elastic steel sheets 508. By segmenting the elastic steel sheet 508, the excessively long elastic steel sheet 508 can be effectively prevented from being twisted under stress, so that the segmented arrangement can protect the elastic steel sheet 508, and if the cable is locally twisted under stress, only the elastic steel sheet 508 in the local area will be affected, and the elastic steel sheet 508 in the remaining length range will not be affected, thereby further improving the stability of the cable during use.

[0036] Notably, the inside of the interwoven shielding net 3 is provided with a plurality of circular thin steel wires, and the plurality of circular thin steel wires realize heat setting of the interwoven shielding net 3. Through the plurality of circular thin steel wires, the stress strength of the interwoven shielding net 3 can be improved, which is similar to segmenting the steel hoop on the reinforcing bar to improve the stress strength of each segment. The interwoven shielding net 3 is effectively prevented from being deformed.

[0037] It is worth noting that the inside of the outer sheath 1 is provided with a protection gap 101, the outer sheath 1 is provided with a circular hole, the inside of the protection gap 101 is filled with a liquid, and after the liquid is filled in the protection gap 101, the circular hole is sealed with glue. Because the laying length of the general cable is long, if damage occurs, the maintenance personnel cannot know which part is damaged, so the protection gap 101 is provided, if damage occurs, the opening can be made from the surface of the outer sheath 1, and the liquid is continuously injected after the opening. If the outer sheath 1 is not damaged, the solution will not be able to be injected again after being filled, if damage occurs, the solution will flow out from the damaged position and gradually infiltrate the surrounding soil, and the maintenance personnel can directly determine the damage position of the cable according to the position of the infiltrated soil. The injected liquid is generally an antifreeze solution, because if it is an aqueous solution, it is easy to cause freezing in a low temperature environment, and to pierce the outer sheath 1, and the antifreeze solution can not freeze in an extremely low temperature environment, and the outer antifreeze layer can also protect against external radio interference. Because the whole protection gap 101 forms a circular liquid protection ring, it effectively protects against internal and external radiation.

[0038] It is worth mentioning that the winding shielding tape 2 is provided with multiple, and multiple winding shielding tape 2 is wrapped with seamless interlaced spiral protective layer 6, and the material of the winding shielding tape 2 is copper sheet, which can realize effective protection of the protective layer 6 by using the coiled copper tape, if the surface of the outer sheath 1 is pierced by a sharp object, and the sharp object will be in contact with multiple winding shielding tape 2, at this time, the material properties of the copper tape are used to protect the inside of the cable from sharp objects. And the copper tape also has a certain radiation protection effect, shielding the high-voltage magnetic field generated by high-voltage alternating current, and can also effectively protect external radiation and internal cable radiation. The high density and atomic number of copper make it better able to absorb and scatter radiation energy. Radiation energy mainly spreads in the form of electromagnetic waves, and the electronic structure of copper has high absorption capacity for electromagnetic waves.

[0039] It should be noted that in this document, the terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply these entities or operations have any such actual relationship or order. Also, the terms "comprises", "comprising", or any other variations thereof are intended to cover non-exclusive inclusions, so that a process, method, article, or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or inherent to such a process, method, article, or device. Without more limitations, the element defined by the statement "comprises a" does not exclude the presence of additional identical elements in the process, method, article, or device including the element.

Claims

1. A double shielded silicone rubber cable, characterized by, It includes an outer sheath, the inside of the outer sheath is sleeved with a protective layer, a gap between the protective layer and the outer sheath is provided with a winding shielding tape, the inside of the protective layer is sleeved with an interwoven shielding net, the inside of the interwoven shielding net is sleeved with an inner sheath, and the inside of the inner sheath is provided with an electric core assembly; The electric core assembly includes a filling rubber ring, the inside of the filling rubber ring is provided with an insulating layer, the inside of the insulating layer is provided with a plurality of copper conductors, the inside of the filling rubber ring is provided with a steel needle for preventing the filling rubber ring from deforming, a plurality of heat-conducting sheets are arranged on the steel needle, the heat-conducting sheets are clamped in the filling rubber ring, a plurality of conduction grooves are arranged in the inside of the filling rubber ring, the copper conductors are provided with a conduction belt, the surface of the conduction belt is connected with the steel needle connected with the heat-conducting sheets, the heat generated by the copper conductors is radiated to the conduction belt and then transmitted to the space in the conduction groove through the heat-conducting sheets and then uniformly radiated on the inner sheath, a plurality of clamping grooves are arranged in the inside of the filling rubber ring, the heat-conducting sheets are arranged in the clamping grooves, a plurality of expansion protection gap grooves are arranged on the surface of the filling rubber ring, a plurality of V-shaped grooves are arranged on the filling rubber ring, and elastic steel sheets are arranged in the V-shaped grooves. The plurality of clamping grooves can provide clamping positions for the plurality of heat-conducting sheets, and the gap grooves and the V-shaped grooves provide buffer spaces for the thermal expansion of the cable. After expansion, the gap grooves are opened to transmit the expansion force to the area of the V-shaped grooves, and then the elastic steel sheets recover the force.

2. A double shielded silicone rubber cable according to claim 1, characterised in that: The elastic steel sheet structure is in an arc-shaped U shape, and the arc surface of the elastic steel sheet abuts against the inner wall of the inner sheath.

3. A double shielded silicone rubber cable according to claim 2, characterised in that: The elastic steel sheets are arranged in segments, and a plurality of elastic steel sheets are arranged in an axial array with the center line of the filling rubber ring as the axis of symmetry, and a gap of 1 / 3 of the length of the elastic steel sheet exists between the plurality of elastic steel sheets.

4. A double shielded silicone rubber cable according to claim 3, characterised in that: A plurality of circular thin steel wires are arranged in the inside of the interwoven shielding net, and the circular thin steel wires are heat-set to the interwoven shielding net.

5. A double shielded silicone rubber cable according to claim 4, characterised in that: The inside of the outer sheath is provided with a protection gap, a circular hole is arranged on the outer sheath, the inside of the protection gap is filled with a liquid, and the circular hole is sealed with glue after the liquid is filled in the protection gap.

6. A double shielded silicone rubber cable according to claim 5, characterised in that: A plurality of winding shielding tapes are arranged, and the plurality of winding shielding tapes are arranged in a spiral staggered manner to wrap the protective layer without gaps.

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