Double-layer shielding silicone rubber cable

Abstract

The invention relates to the technical field of cables, and discloses a double-layer shielding silicone rubber cable, which is characterized by comprising an outer sheath, a protective layer is sleeved in the outer sheath, a winding shielding tape is arranged at a gap between the protective layer and the outer sheath, an interlaced shielding net is sleeved in the protective layer, and the interlaced shielding net is arranged in the outer sheath. An inner sheath is arranged in the interwoven shielding net in a sleeving manner, and a battery cell assembly is arranged in the inner sheath. According to the double-layer shielding silicone rubber cable, double-layer protection of the cable is realized through the outer sheath and the inner sheath, and double-layer protection of the cable and shielding of interference of the outer layer and external radiation can be realized by using the winding shielding tape and the interweaving shielding net; and the shielding net with a staggered structure can realize effective gap conduction of heat while realizing protection and shielding of the cable, so that effective external protection and internal balanced heat dissipation of the silicone rubber cable are realized.

Description

Technical Field

[0001] The invention relates to the technical field of cables, in particular to a double-layer shielded silicone rubber cable. Background Art

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

[0003] At present, during the production or use of silicone rubber cables, they are easily damaged because they are made of silicone rubber. At the same time, the internal heat dissipation performance is weak. The internal battery core generates a lot of heat during the power transmission process, which is transferred to the internal rubber filling part, resulting in uneven heat conduction. In addition, due to the silicone rubber material, the internal heat conduction is not timely, which will cause thermal expansion and contraction, causing the cable to easily crack. Because the cable is generally buried inside the soil, the temperature of its outer layer is relatively low. If the internal temperature gradually rises, the internal battery core will gradually expand. At this time, the temperature of the outer sheath is relatively low and the temperature of the internal battery core is relatively high, which will lead to the untimely heat conduction of the two, resulting in the expansion of the cable part and even cracking. Therefore, a double-layer shielded silicone rubber cable is proposed to solve the above-mentioned problems. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the present invention provides a double-layer shielded silicone rubber cable, which solves the problem in the prior art that during the use of silicone rubber cables, the heat generated by the battery core has too low thermal conductivity, resulting in a certain temperature difference between the sheath and the core. With long-term use, the cable will continue to expand and contract, resulting in a reduction in its service life and damage.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, 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 winding shielding tape is provided at 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 heat conducting sheets, and the heat conducting sheets are 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, a 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 arranged 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 also provided on the filling rubber ring, and elastic steel sheets are arranged 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 symmetry axis, 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 net, and the plurality of round thin steel wires are used to heat-shape the interwoven shielding net.

[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 the liquid, the circular hole is sealed with glue.

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

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the present invention provides a double-layer shielded silicone rubber cable, which has the following beneficial effects:

[0018] 1. The double-layer shielded silicone rubber cable realizes double-layer protection of the cable by setting an outer sheath and an inner sheath, and utilizes a winding shielding tape and an interwoven shielding net to realize double-layer protection of the cable and shielding of the outer layer interference and external radiation. The shielding net with an interlaced structure can realize the protection shielding of the cable while realizing effective gap conduction of heat, realizing effective external protection and internal balanced heat dissipation for the silicone rubber cable.

[0019] 2. The double-layer shielded silicone rubber cable can directly conduct the heat generated by the copper conductor to the sheet-shaped thermal conductive sheet through the thermal conductive sheet. The thermal conductive sheet is evenly distributed, so the heat will be radiated outward evenly until it enters the inner sheath, and then evenly conduct external heat to improve the balanced heat dissipation of the cable.

[0020] 3. The double-layer shielded silicone rubber cable, through the gap grooves and V-shaped grooves, can provide an expanded outward gap when the copper conductor generates heat and the insulation layer expands due to heat, thereby avoiding direct expansion and forming an extrusion stress state with the filling rubber ring, thereby increasing the service life of the cable and avoiding the expansion and cracking of the cable caused by long-term thermal expansion and contraction. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of a double-layer shielded silicone rubber cable proposed by the present invention;

[0022] Figure 2 This is a schematic diagram of the overall planar structure of a double-layer shielded silicone rubber cable proposed by the present invention;

[0023] Figure 3 A schematic diagram of the connection position structure of an interwoven shielding net of a double-layer shielded silicone rubber cable proposed by the present invention;

[0024] Figure 4 This is a schematic diagram of the structure of a core assembly of a double-layer shielded silicone rubber cable proposed by the present invention;

[0025] Figure 5 This is a schematic structural diagram of a filling rubber ring of a double-layer shielded silicone rubber cable proposed by the present invention;

[0026] Figure 6 A schematic cross-sectional structure diagram of an outer sheath of a double-layer shielded silicone rubber cable proposed by the present invention;

[0027] Figure 7 This is a schematic diagram of the outer sheath structure of a double-layer shielded silicone rubber cable proposed by the present invention.

[0028] In the figure: 1. Outer sheath; 101. Protection gap; 2. Wrapped shielding tape; 3. Interwoven shielding net; 4. Inner sheath; 5. Cell assembly; 501. Filling rubber ring; 502. Insulation layer; 503. Steel needle; 504. Thermal conductive sheet; 505. Copper conductor; 506. Conductive tape; 507. Conductive groove; 508. Elastic steel sheet; 509. V-groove; 510. Gap groove; 511. Card slot; 6. Protective layer. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] See also Figure 1-Figure 7 A double-layer shielded silicone rubber cable comprises an outer sheath 1, a protective layer 6 is provided inside the outer sheath 1, a winding shielding tape 2 is provided in the gap between the protective layer 6 and the outer sheath 1, an interwoven shielding net 3 is provided inside the protective layer 6, an inner sheath 4 is provided inside the interwoven shielding net 3, and a battery core assembly 5 is provided inside the inner sheath 4.

[0031] In this embodiment, the battery cell assembly 5 includes a filling rubber ring 501, an insulating layer 502 is arranged inside the filling rubber ring 501, a plurality of copper conductors 505 are arranged inside the insulating layer 502, and a steel needle 503 is arranged inside the filling rubber ring 501 to prevent the filling rubber ring 501 from deforming, and a plurality of steel needles 503 are provided with a heat conducting sheet 504, and the heat conducting sheet 504 is stuck in the filling rubber ring 501. The heat conducting sheet 504 can conduct the heat of the copper conductor 505 from the inside to the outside of the insulating layer 502, avoiding direct heat transfer through the insulating layer 502, because the material of the insulating layer 502 is generally rubber plastic material, so its heat conduction and heat dissipation effect is not good, and the copper material of the heat conducting sheet 504 can effectively transfer heat to the outside. The plurality of steel needles 503 can improve the strength of the heated insulating layer 502 to avoid softening after being heated.

[0032] Furthermore, a plurality of conducting grooves 507 are arranged inside the filling rubber ring 501, and a conducting belt 506 is arranged on the outer sleeve of the copper conductor 505. The surface of the conducting belt 506 is connected to the steel needles 503 connected to the plurality of heat conducting sheets 504. The heat generated by the copper conductor 505 is radiated to the conducting belt 506 and transferred to the space of the conducting groove 507 through the heat conducting sheets 504, and then evenly distributed on the inner sheath 4. When the copper conductor 505 is transmitting electricity or operating, it will generate a certain amount of heat due to the effect of resistance, and the heat will be transferred to the conducting belt 506, and the conducting belt 506 will transfer the heat to the plurality of heat conducting sheets 504, and then the heat conducting sheets 504 can transfer the heat to the position of the gap groove 510 through the conducting groove 507, and then transfer it to the inner sheath 4, so as to realize the sequential and balanced transfer of heat, avoid the local expansion caused by excessive local heat, improve the heat dissipation effect of the cable, and at the same time, improve the service life of the cable and reduce the internal rupture.

[0033] Furthermore, a plurality of slots 511 are provided inside the filling rubber ring 501, and a plurality of heat conducting sheets 504 are provided, and the plurality of heat conducting sheets 504 are clamped inside the slots 511. A gap groove 510 for expansion protection is provided on the surface of the filling rubber ring 501, and a plurality of V-shaped grooves 509 are also provided on the filling rubber ring 501, and elastic steel sheets 508 are provided inside the V-shaped grooves 509. The plurality of slots 511 can provide clamping positions for the plurality of heat conducting sheets 504, and the gap grooves 510 and V-shaped grooves 509 provide a certain buffer space for the thermal expansion of the cable, because after the expansion, the gap grooves 510 will open, and after opening, the force will be transmitted to the area of ​​the V-shaped grooves 509, and then the elastic steel sheets 508 will recover the force. This can effectively protect the cable from expanding due to heat, provide an outward expansion gap, and avoid direct expansion that causes an extrusion stress state with the filling rubber ring 501, thereby increasing the service life of the cable and avoiding cracking caused by long-term thermal expansion and contraction of the cable.

[0034] In addition, the elastic steel sheet 508 has an arc-shaped U-shape, 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 into a U-shape, because it has a certain elastic force, it can control the filling rubber rings 501 on both sides to squeeze the insulating layer 502 through the squeezing force, so that the gap groove 510 is in a closed state under normal conditions. If it expands due to heat, the gap groove 510 will gradually expand and transmit the expansion force 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 arranged in sections, and the multiple elastic steel sheets 508 are arranged in a linear array with the center line of the filling rubber ring 501 as the symmetric axis, and there is a gap of 1 / 3 of the length of the elastic steel sheet 508 between the multiple elastic steel sheets 508. By arranging the elastic steel sheet 508 in sections, it is possible to effectively prevent the elastic steel sheet 508 that is too long from being twisted by force, so the elastic steel sheet 508 can be protected in sections by using the sectioned setting. If the cable is twisted locally by force, it will only affect the elastic steel sheet 508 in the local area, 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] It is worth noting that a plurality of round thin steel wires are arranged inside the interwoven shielding net 3, and the plurality of round thin steel wires are heat-shaped for the interwoven shielding net 3. The plurality of round thin steel wires can improve the stress strength of the interwoven shielding net 3, similar to the steel hoops being arranged in sections on the steel bars to improve the stress strength of each section. The interwoven shielding net 3 is effectively prevented from deformation.

[0037] It is worth noting that a protective gap 101 is provided inside the outer sheath 1 , a circular hole is provided on the outer sheath 1 , and the protective gap 101 is filled with liquid. After the protective gap 101 is filled with liquid, the circular hole is sealed with glue. Because the laying length of the general cable is long, if it is damaged, the maintenance personnel cannot know which part is damaged, so a protective gap 101 is set. If damage occurs, an opening can be made from the surface of the outer sheath 1, and liquid is continuously injected after the opening. The two ends of the outer sheath 1 are in a closed state. Therefore, when the liquid is injected, if the outer sheath 1 is not damaged, the solution will not be able to be injected after it is filled. If damage occurs, the solution will flow out from the damaged position and will gradually infiltrate the surrounding soil. The maintenance construction personnel can directly determine the damaged position of the cable according to the position of the infiltrated soil. The injected liquid is generally antifreeze, because if it is an aqueous solution, it is easy to cause ice in a low temperature environment and puncture the outer sheath 1. The antifreeze used will not freeze in an extremely low temperature environment. At the same time, the antifreeze layer set on the outer layer can also protect against external wireless interference, because the entire circle of the protective gap 101 is equivalent to forming a circular liquid protection circle, which effectively protects internal and external radiation.

[0038] It is worth mentioning that there are multiple winding shielding tapes 2, and the multiple winding shielding tapes 2 are seamlessly wrapped around the protective layer 6 in a spiral staggered manner. The winding shielding tape 2 is made of copper sheets. The wound copper tape can effectively protect the protective layer 6. If the surface of the outer sheath 1 is punctured by a sharp object, and the sharp object will then contact the multiple winding shielding tapes 2, the material properties of the copper tape can be used to protect the inside of the cable from sharp objects. 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 radiation generated by internal cables. The high density and atomic number of copper enable it to better absorb and scatter radiation energy. Radiated energy is mainly transmitted in the form of electromagnetic waves, and the electronic structure of copper has a high absorption capacity for electromagnetic waves.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

Claims

1. A double-layer shielded silicone rubber cable, characterized in that: It comprises an outer sheath, the inner sleeve of the outer sheath is provided with a protective layer, a winding shielding tape is provided in the gap between the protective layer and the outer sheath, the inner sleeve of the protective layer is provided with an interwoven shielding net, the inner sleeve of the interwoven shielding net is provided with an inner sheath, and a battery core assembly is provided inside the inner sheath.

2. A double-layer shielded silicone rubber cable according to claim 1, characterized in that: The battery core assembly includes a filling rubber ring, an insulating layer is arranged inside the filling rubber ring, a plurality of copper conductors are arranged inside the insulating layer, and steel needles are arranged inside the filling rubber ring to prevent the filling rubber ring from deforming, and a plurality of steel needles are provided with heat conducting sheets, and the heat conducting sheets are stuck in the filling rubber ring.

3. A double-layer shielded silicone rubber cable according to claim 1, characterized in that: A plurality of conduction grooves are arranged inside the filling rubber ring, a conduction belt is arranged on the outer sleeve of the copper conductor, and the surface of the conduction belt is connected to steel needles connected to a plurality of heat conducting sheets. 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.

4. The double-layer shielded silicone rubber cable according to claim 1, characterized in that: 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 arranged inside the slots.

5. The double-layer shielded silicone rubber cable according to claim 1, characterized in that: The surface of the filling rubber ring is provided with a gap groove for expansion protection, and the filling rubber ring is also provided with a plurality of V-shaped grooves, wherein elastic steel sheets are arranged in the V-shaped grooves.

6. A double-layer shielded silicone rubber cable according to claim 5, characterized 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.

7. A double-layer shielded silicone rubber cable according to claim 6, characterized in that: 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 symmetry axis, and a gap of 1 / 3 of the length of the elastic steel sheet exists between the plurality of elastic steel sheets.

8. The double-layer shielded silicone rubber cable according to claim 1, characterized in that: A plurality of round thin steel wires are arranged inside the interwoven shielding net, and the plurality of round thin steel wires are used to heat-shape the interwoven shielding net.

9. The double-layer shielded silicone rubber cable according to claim 1, characterized in that: A protective gap is arranged inside the outer sheath, a circular hole is arranged 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.

10. The double-layer shielded silicone rubber cable according to claim 1, characterized in that: A plurality of wrapping shielding tapes are provided, and the plurality of wrapping shielding tapes wrap the protective layer seamlessly in a spirally staggered manner.

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