A pressure-resistant and torsion-resistant cable

Abstract

This invention discloses a pressure-resistant and torsion-resistant cable, relating to the field of cable technology. It includes a battery core, surrounded by a functional layer, an anti-torsion layer, and an outer sheath. Multiple sets of anti-torsion components are disposed within the anti-torsion layer. Each set consists of an expansion member and a contraction member. Both the expansion and contraction members within the same set are filled with inert gas and are interconnected when not subjected to external force. When subjected to a large external force, the contraction member contracts and discharges the inert gas into the expansion member, causing the expansion member to expand and resist the external force. This invention, through the exchange of inert gas between the expansion and contraction members, enables the cable to enhance its anti-torsion effect as the external torsional force increases. The protrusions and depressions of the expansion and contraction members, as well as the color of the breakage points, can assist maintenance personnel in quickly locating faults, solving the problem that existing cables cannot enhance their anti-torsion effect as the external torsional force increases.

Description

Technical Field

[0001] This invention relates to the field of cable technology, and more particularly to a pressure-resistant and torsion-resistant cable. Background Technology

[0002] In actual production, a cable is usually a device for transmitting electrical energy, consisting of a conductor wrapped with an insulation layer and a shielding layer, and an outer sheath. Depending on the different usage environments of the cable, the manufacturing requirements of the cable are also different. For example, when used on equipment that moves frequently, the cable needs to have strong compressive and torsional resistance to prevent the cable from being squeezed and twisted when the equipment moves. This would prevent the compression and twisting from being directly transmitted to the inside of the cable, causing deformation of the conductor, reducing transmission efficiency, or even causing internal damage to the cable.

[0003] In practical use, it was found that although the expansion and contraction components and the inert gas inside them can achieve a certain degree of pressure resistance and torsion resistance, when subjected to large torsional forces, the cable needs to deform to resist the torsional force. However, since the inert gas inside the expansion and contraction components cannot be connected, when the torsional force is too large, the inert gas is not easily compressed, resulting in less deformation of the outer sheath and making it easy to directly tear the cable's exterior, thus failing to resist the torsional force.

[0004] While the above embodiments enhance the cable's pressure resistance and torsion resistance, in actual use, when the cable is subjected to excessive torsion or compression, causing a break at the location of the expansion or contraction component, if the break is small, the cable's overall round shape makes it difficult to quickly identify the break location. Consequently, it becomes impossible to quickly locate and repair the damaged area, affecting the work efficiency of maintenance personnel. Summary of the Invention

[0005] The purpose of this invention is to provide a pressure-resistant and torsion-resistant cable to solve the technical problems mentioned in the background art, namely, that existing cables cannot enhance their torsion resistance as external torsional forces increase, and that they cannot quickly locate faults.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a pressure-resistant and torsion-resistant cable, comprising a battery core, wherein the battery core is sequentially wrapped with a functional layer, an anti-torsion layer, and an outer sheath. Multiple sets of anti-torsion components are disposed within the anti-torsion layer, each set consisting of an expansion member and a contraction member. Both the expansion member and the contraction member within the same set are filled with inert gas and are interconnected when not subjected to external force, maintaining flexibility. When subjected to a large external force, the contraction member contracts and discharges the inert gas into the expansion member, causing the expansion member to expand and thus resist the external force.

[0007] Preferably, the expansion and contraction components in the same group are connected by a connecting pipe, and each expansion and contraction component is fixedly connected to the anti-torsion layer.

[0008] Preferably, each of the connecting pipes is provided with a rigid box, and two baffles are respectively provided on both sides of the inside of the box via a rotating shaft.

[0009] Preferably, the side of each baffle away from the corresponding rotating shaft is inclined, and the inclined parts of two baffles in the same box can fit together.

[0010] Preferably, a reset element is provided between each of the rotating shafts and the corresponding housing.

[0011] Preferably, both the expansion and contraction components in the same group are provided with connecting pipes, and the connecting pipes on the expansion and contraction components in the same group are connected by a connecting groove opened on the anti-torsion layer.

[0012] Preferably, the anti-torsion layer is provided with a plurality of bladders corresponding to the anti-torsion components, the bladders are provided with blocking members that can be inserted into the communicating grooves, and the bladders are also filled with inert gas.

[0013] Preferably, the inner side of the outer sheath and the outer side of the anti-torsion layer are provided with multiple clearance grooves for avoiding the bladder body. The bladder body is provided with an elastic element for resetting the bladder body. The two ends of the elastic element are respectively connected to the two inner sidewalls of the bladder body that are close to and far away from the battery cell.

[0014] Preferably, the inert gas inside the shrinking and expanding parts contains pigments.

[0015] Preferably, the functional layer includes an insulating layer disposed on the outside of the battery cell, a shielding layer disposed on the outside of the insulating layer, and a lubricating layer on the outer wall of the shielding layer and the inner wall of the anti-torsion layer.

[0016] The beneficial effects of this invention are:

[0017] 1. By incorporating expansion and contraction components and inert gas, the cable can withstand external pressure and torsion when subjected to compression and torsion. The reaction force from the compressed inert gas resists these forces, achieving pressure and torsion resistance. This prevents external forces from damaging the cable core. Furthermore, when the cable is not subjected to external forces, the expansion and contraction components remain connected, keeping the cable flexible under normal conditions. This allows the cable to adapt to bending and other adverse conditions during operation. When subjected to significant torsional force, the contraction component releases gas in one direction, and a baffle blocks the connection pipe, causing the expansion and contraction components to expand and contract respectively. This means the cable's torsional resistance varies with the intensity of the torsional force; stronger torsional forces result in greater torsional resistance. If the expansion and contraction components fail to return to their original state after the torsional force disappears, the location of the expansion and contraction points can be quickly identified, improving maintenance efficiency.

[0018] 2. By mixing inert gas with floating pigments, the location of the cable break can be quickly identified, thereby improving the maintenance efficiency of the maintenance personnel and facilitating the rapid return of equipment to work after cable repair, reducing wasted maintenance time. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 This is a schematic diagram of the structural distribution of the anti-torsion component in this invention.

[0021] Figure 3 This is a schematic diagram of the deformed structure of the shrinking and expanding parts of the present invention.

[0022] Figure 4 This is a schematic diagram of the structure where the blocking element opens in this invention.

[0023] The attached figures are labeled as follows: 1. Battery cell; 2. Functional layer; 201. Insulation layer; 202. Shielding layer; 3. Anti-torsion layer; 31. Anti-torsion component; 301. Expansion component; 302. Contraction component; 304. Inert gas; 305. Connecting pipe; 306. Box body; 307. Baffle; 308. Reset component; 309. Connecting pipe; 310. Enclosure body; 311. Blocking component; 312. Elastic component; 4. Outer protective layer. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Example 1

[0026] In actual production, a cable is usually a device for transmitting electrical energy, consisting of a conductor wrapped with an insulation layer 201 and a shielding layer 202, and an outer sheath. Depending on the different usage environments of the cable, the manufacturing requirements of the cable are also different. For example, when used on equipment that moves frequently, the cable needs to have strong resistance to pressure and torsion, so as to prevent the cable from being squeezed and twisted when the equipment moves. This would prevent the compression and torsion from being directly transmitted to the inside of the cable, causing deformation of the conductor, reducing transmission efficiency, or even causing damage to the inside of the cable.

[0027] Please see Figures 1 to 4 As shown, an embodiment of the present invention provides a voltage-resistant and torsion-resistant cable, comprising a battery core 1, a functional layer 2, an anti-torsion layer 3, and an outer sheath 4 sequentially wrapped around the battery core 1. Multiple sets of anti-torsion components 31 are disposed within the anti-torsion layer 3, each set consisting of an expansion member 301 and a contraction member 302. Multiple segments of the expansion member 301 and contraction member 302 are intermittently disposed along the extension direction of the anti-torsion layer 3, so that only the damaged portion needs to be replaced when damaged. Inert gas 304 is filled within the expansion member 301 and contraction member 302 of the same set. Each expansion member 301 and contraction member 302 is fixedly connected to the anti-torsion layer 3. The functional layer 2 includes an insulation layer 201 disposed outside the battery core 1, and a shielding layer 202 disposed outside the insulation layer 201. The outer wall of the shielding layer 202 and the inner wall of the anti-torsion layer 3 are both lubricating layers.

[0028] When the cable is subjected to external pressure, the pressure is applied to the anti-torsion layer 3 through the outer sheath 4. Since the anti-torsion layer 3 is provided with multiple sets of anti-torsion components 31, and the anti-torsion components 31 are composed of expansion members 301 and contraction members 302, and both expansion members 301 and contraction members 302 are filled with inert gas 304, when subjected to external extrusion pressure, the expansion members 301 and contraction members 302 and the inert gas 304 inside are squeezed, giving the external force a reverse resistance force. At the same time, the anti-torsion layer 3 and the expansion members 301, contraction members 302 and the inert gas 304 inside the expansion members 301 and contraction members 302 can provide a buffer force, thereby achieving the function of resisting external extrusion pressure and preventing the external extrusion pressure from directly acting on the shielding layer 202 and insulation layer 201 and the battery core 1 on the functional layer 2 of this cable, which would lead to damage to this cable.

[0029] When the cable is subjected to external torsional force, since the outer wall of the shielding layer 202 and the inner wall of the anti-torsion layer 3 are both lubricating layers, the inner wall of the anti-torsion layer 3 and the outer wall of the shielding layer 202 can slide relative to each other when subjected to torsional force, thereby achieving a certain anti-torsion effect. When the torsional force is large, the torsional force acts on the expansion member 301 and the contraction member 302, thereby causing the inert gas 304 inside the expansion member 301 and the contraction member 302 to be squeezed. Since the space inside the expansion member 301 and the contraction member 302 is fixed, when the inert gas 304 is squeezed by the torsional force in the limited space, the inert gas 304 can exert a force that resists the torsional force on the anti-torsion layer 3 and the outer sheath 4, thereby achieving a strong anti-torsion effect.

[0030] By using the expansion member 301, contraction member 302, and inert gas 304, when the cable is subjected to compression and torsion, the reaction force applied by the inert gas 304 when it is compressed can resist the external compression and torsional forces, thereby achieving the cable's pressure resistance and torsion resistance, and preventing external forces from acting on the cable core 1, which could cause damage to the cable's interior.

[0031] Example 2

[0032] In practical use, it was found that although the expansion member 301, the contraction member 302, and the inert gas 304 inside them can achieve a certain pressure resistance and torsion resistance, when subjected to a large torsional force, the cable needs to deform to a certain extent to resist the torsional force. Since the inert gas 304 inside the expansion member 301 and the contraction member 302 cannot be connected, when the torsional force is too large, the inert gas 304 is not easy to be compressed, resulting in less deformation of the outer sheath 4, which can easily lead to direct tearing of the cable exterior and make it unable to resist the torsional force.

[0033] To solve the above technical problems, based on the above embodiments, please refer to... Figures 1 to 4As shown, the technical solution includes an expansion member 301 and a contraction member 302, which are interconnected and remain flexible when not subjected to external force. When subjected to a large external force, the contraction member 302 contracts and discharges inert gas 304 into the expansion member 301, causing the expansion member 301 to expand and resist the external force. The expansion members 301 and contraction members 302 in the same group are connected by a connecting pipe 305. Each connecting pipe 305 is provided with a rigid housing 306. Two baffles 307 are provided on both sides of the housing 306 via a rotating shaft. The side of each baffle 307 away from the corresponding rotating shaft is inclined. The inclined parts of the two baffles 307 in the same housing 306 can fit tightly together. A reset member 308 is provided between each rotating shaft and the corresponding housing 306. A connecting pipe 309 is provided on the expansion member 301 and the contraction member 302 in the same group. One end of the connecting tube 309 extending from the corresponding expansion member 301 and contraction member 302 is connected through a connecting groove on the anti-torsion layer 3. One end of the connecting tube 309 extending from the corresponding expansion member 301 and contraction member 302 is fixedly connected to the anti-torsion layer 3. Multiple bladders 310 corresponding to the anti-torsion component 31 are provided in the anti-torsion layer 3. The bladders 310 are provided with blocking members 311 that can be inserted into the connecting groove. The bladders 310 are also filled with inert gas 304. The position of the bladders 310 does not affect the expansion and contraction of the contraction member 302 and the expansion member 301. The expansion and contraction of the contraction member 302 and the expansion member 301 do not affect the compression and contraction of the bladders 310. Multiple clearance grooves for avoiding the bladders 310 are provided on the inner side of the outer protective layer 4 and the outer side of the anti-torsion layer 3. An elastic member 312 for resetting the bladders 310 is provided in the bladders 310. The two ends of the elastic member 312 are respectively connected to the two inner side walls of the bladders 310 that are close to and far away from the battery cell 1.

[0034] In actual use, when the cable is subjected to a large external torsional force, the pressure generated inside the shrink member 302 is sufficient to resist the resistance of the reset member 308. At this time, the outer sheath 4 is also deformed at the position away from the shrink member 302 and the expansion member 301, so that the bladder 310 is squeezed by the outer sheath 4 and the anti-torsion layer 3, thereby causing the bladder 310 to extend near the connecting groove. The elastic member 312 is stretched, and the extension of the bladder 310 drives the blocking member 311 to insert into the connecting groove, so that the two corresponding connecting pipes 309 are no longer connected.

[0035] The position of the bladder 310 does not affect the expansion and contraction of the contraction member 302 and the expansion member 301. The expansion and contraction of the contraction member 302 and the expansion member 301 do not affect the compression and contraction of the bladder 310. The position, size, and shape of the bladder 310 can be designed according to actual conditions. When the inert gas 304 in the contraction member 302 is discharged into the expansion member 301, the inert gas 304 pushes the baffle 307 to rotate, and the baffle 307 drives the rotating shaft to rotate. Since the inert gas 304 in the expansion member 301 needs to be discharged into the contraction member... When the expansion member 301 is inside the contraction member 302, the baffle 307 is closed, thus preventing the inert gas 304 inside the expansion member 301 from being discharged into the contraction member 302. This causes the expansion member 301 to tend to expand and the contraction member 302 to tend to contract. Only the inert gas 304 inside the contraction member 302 can be discharged into the expansion member 301. This allows the gas inside the contraction member 302 to be discharged into the expansion member 301 through the connecting pipe 305 and the box 306, causing the expansion member 301 to expand to a certain extent and the contraction member 302 to contract to a certain extent.

[0036] As the gas inside the shrink member 302 is expelled, the shrink member 302 contracts. Since the shrink member 302 and the expansion member 301 are fixedly connected to the anti-torsion layer 3, the expansion member 301 will cause the anti-torsion layer 3 and the corresponding outer sheath 4 to expand, giving this part a certain rigidity. The shrink member 302 causes the anti-torsion layer 3 and the corresponding position of the outer sheath 4 to contract, thereby causing the corresponding position to be concave, thus causing the cable to deform to a certain extent and overcome the torsional force. At the same time, as the inert gas 304 inside the expansion member 301 is continuously compressed, the energy of the inert gas 304 is higher, and the compression difficulty of the inert gas 304 gradually increases, making the cable's anti-torsion ability stronger with the increase of the torsional force. Furthermore, through the expansion and contraction of the expansion member 301 and the shrink member 302, the outer sheath 4 is alternately protruded and concave, which can prevent direct tearing of the cable exterior. This state is not shown on the outside of the cable, thus further adapting to external torsion and pressure.

[0037] As the torsional force on the cable gradually disappears, a reset component 308 is provided between the shaft and the housing 306. The reset component 308 drives the shaft to rotate in the opposite direction, which in turn drives the two baffles 307 to rotate in the opposite direction. This causes the inclined parts of the two baffles 307 to come into contact again. The two reset components 308 within the same housing 306 exert different forces, resulting in different swing amplitudes and reset speeds of the two baffles 307. This ensures that the inclined parts of the two baffles 307 can accurately come into contact each time, preventing the inert gas 304 in the expansion component 301 from being directly discharged into the contraction component 302. This maintains the cable's high torsional resistance as the torsional force gradually disappears. The connecting pipe 305, housing 306, baffles 307, shaft, and reset component 308 can be other ventilation components that can achieve this function. No special restrictions are imposed here.

[0038] After the torsional force on the outside of the cable disappears, the bladder 310 is no longer squeezed by the outer sheath 4 and the anti-torsion layer 3, thereby reducing the pressure inside the bladder 310. The elastic element 312 pulls the deformed side of the bladder 310 back to its original position, causing the blocking element 311 to gradually move out of the connecting groove. This allows the excess gas in the expansion element 301 to be discharged into the corresponding contraction element 302 through the connecting pipe 305 and the connecting groove, maintaining the roundness of the cable surface. The deformation of the anti-torsion layer 3 will not cause the box 306 to deform, so as to ensure the normal operation of the baffle 307.

[0039] When the expansion member 301 and contraction member 302 included in a set of anti-torsion components 31 cannot be restored, that is, after the torsional force or compressive force on the outside of the cable disappears, the expansion member 301 is still in an expanded state and the contraction member 302 is still in a contracted state, then damage may occur at that location. The expansion and depression can indicate the location of the fault, enabling maintenance personnel to quickly identify the fault location, thereby facilitating rapid repair by maintenance personnel, reducing the time spent on detecting the fault location, and saving working time.

[0040] By using the bladder 310 and the blocking member 311, the expansion member 301 and the corresponding contraction member 302 can be kept connected when the cable is not subjected to external forces. This allows the cable to remain flexible under normal conditions, making it easier for the cable to adapt to bending and other situations that may occur during operation. When the cable is subjected to a large torsional force, the contraction member 302 can vent in one direction, and the baffle 307 blocks the connection of the connecting pipe 309. This allows the expansion member 301 and the contraction member 302 to expand and contract respectively under torsional force, so that the cable's torsional resistance changes with the intensity of the torsional force. When the torsional force is strong, the torsional resistance is enhanced. When the expansion member 301 and the contraction member 302 cannot return to their original state after the torsional force disappears, the location of the fault can be quickly determined by the location of the expansion point and the depression point, thereby improving maintenance efficiency.

[0041] Example 3

[0042] While the above embodiments enhance the cable's pressure resistance and torsion resistance, in actual use, when the cable is subjected to excessive torsion or compression, causing a tear at the location of the expansion member 301 or contraction member 302, if the tear is small, the cable's overall round shape makes it difficult to quickly identify the tear location. Consequently, it becomes impossible to quickly locate and repair the damaged area, affecting the work efficiency of maintenance personnel.

[0043] To solve the above-mentioned technical problems, refer to the accompanying drawings in the specification. Figures 1 to 4As shown, based on the above embodiments, the technical solution adopted includes an expansion member 301 and a contraction member 302. The inert gas 304 in both the contraction member 302 and the expansion member 301 contains pigments that can float. The color of the pigments is different from the color of the outer protective layer 4.

[0044] When the outer sheath 4, the anti-torsion layer 3, and the expansion member 301 or contraction member 302 are punctured and a hole is formed, inert gas 304 and floating pigment are sprayed out from the hole. The sprayed pigment makes the color of the hole different from the color of the outer sheath 4 at the hole location, which makes it easier for maintenance personnel to quickly locate the hole. This improves the work efficiency of maintenance personnel when a cable is punctured, and facilitates the rapid restoration of equipment operation.

[0045] Furthermore, when the outer sheath 4 is burned through, the inert gas 304 that is sprayed out can play a certain flame-retardant role, thereby improving the flame-retardant performance of the cable. The anti-torsion layer 3, outer sheath 4, shrinkage component 302, expansion component 301, etc. are all made of high-temperature resistant flame-retardant materials. This technology is existing technology and will not be described in detail here.

[0046] By mixing inert gas 304 with floating pigments, the location of cable breaks can be quickly identified, thereby improving the efficiency of maintenance personnel and facilitating the rapid return of equipment to work after cable repair, reducing wasted maintenance time.

[0047] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A voltage-resistant and torsion-resistant cable, comprising a battery core, characterized in that, The battery cell is sequentially wrapped with a functional layer, an anti-torsion layer, and an outer sheath. The anti-torsion layer contains multiple sets of anti-torsion components. Each set of anti-torsion components consists of an expansion component and a contraction component. The expansion and contraction components in the same set are filled with inert gas and are interconnected when not subjected to external force, maintaining flexibility. When subjected to a large external force, the contraction component contracts and discharges the inert gas into the expansion component, causing the expansion component to expand and thus resist the external force. The expansion and contraction components in the same group are connected by a connecting pipe; Each of the connecting pipes is provided with a rigid box, and two baffles are respectively provided on both sides of the inside of the box via a rotating shaft; The expansion and contraction components in the same group are all provided with connecting pipes, and the connecting pipes on the expansion and contraction components in the same group are connected by a connecting groove opened on the anti-torsion layer; The anti-torsion layer contains a plurality of bladders corresponding to the anti-torsion components. Each bladder is provided with a blocking member that can be inserted into a communicating groove. The bladder is also filled with inert gas. Multiple clearance grooves are provided on the inner side of the outer protective layer and the outer side of the anti-torsion layer to avoid the bladder body, and an elastic element is provided inside the bladder body to reset the bladder body.

2. The voltage-resistant and torsion-resistant cable according to claim 1, characterized in that, Each of the expansion and contraction components is fixedly connected to the anti-torsion layer.

3. The voltage-resistant and torsion-resistant cable according to claim 2, characterized in that, Each baffle is inclined on the side away from the corresponding pivot, and the inclined parts of two baffles in the same box can fit together.

4. The voltage-resistant and torsion-resistant cable according to claim 3, characterized in that, A reset element is provided between each of the said rotating shafts and the corresponding box body.

5. A voltage-resistant and torsion-resistant cable according to claim 4, characterized in that, The inert gas inside the shrinking and expanding components contains pigments.

6. The voltage-resistant and torsion-resistant cable according to claim 5, characterized in that, The functional layer includes an insulating layer disposed on the outside of the battery cell, a shielding layer disposed on the outside of the insulating layer, and a lubricating layer on the outer wall of the shielding layer and the inner wall of the anti-torsion layer.

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