Power line and new energy equipment

Abstract

The utility model relates to the technical field of cables, and provides a power line and new energy equipment. The power line comprises a conductor assembly. The conductor assembly comprises a central tow and a peripheral conductor layer, and the peripheral conductor layer is arranged on the outer side of the central tow in a surrounding mode to form a center-periphery composite arrangement structure. The central filament bundle is a bundle body formed by twisting a plurality of metal fiber filament bundles, the peripheral conductor layer is a bundle body formed by twisting a plurality of tinned copper filament bundles, and the central filament bundle and the peripheral conductor layer are mutually and repeatedly twisted to form an integrated conductor assembly. According to the structure, through a composite arrangement and double twisting mode, the bending resistance is greatly reduced, and the flexibility of the power line is remarkably improved, so that the power line is suitable for laying in a narrow space and frequent bending requirements; the central metal fiber filaments replace part of copper materials, so that light weight is realized while the conductive performance is ensured, and the construction and carrying cost is reduced; stress is more uniform, local stress concentration is avoided, hidden damage is reduced, use reliability is improved, and the service life is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to cable technical field especially relates to a power cord and new energy equipment. BACKGROUND

[0002] With the rapid development of new energy industries such as photovoltaic, wind power, energy storage and electric vehicles, new energy equipment puts forward higher requirements on the mechanical properties and use convenience of supporting power cords. As the core component of power transmission in new energy systems, power cords often need to be laid in narrow spaces and complex working conditions and need to be frequently bent and adjusted, which puts strict tests on their flexibility and lightweight level.

[0003] The power cord for new energy equipment in the prior art uses single copper wire twisting or simple composite structure for the conductor. This traditional conductor structure leads to the problems of insufficient flexibility and large bending radius of the power cord, which not only makes the operation inconvenient during construction and laying, but also easily causes hidden damage due to bending stress, affecting the subsequent use reliability. At the same time, the weight of the traditional conductor structure is large, which increases the construction and transportation cost and installation difficulty, and is difficult to adapt to the application requirements of flexible deployment of new energy equipment. SUMMARY

[0004] In view of the above technical problems, the utility model provides a power cord and new energy equipment.

[0005] The first aspect of the utility model provides a power cord, which comprises a conductor assembly. The conductor assembly comprises a central filament bundle and a peripheral conductor layer, and the peripheral conductor layer is arranged outside the central filament bundle.

[0006] The central filament bundle comprises a plurality of bundle-twisted metal fiber filaments, the peripheral conductor layer comprises a plurality of bundle-twisted tinned copper filaments, and the central filament bundle and the peripheral conductor layer are mutually complex twisted.

[0007] According to the power cord provided by the utility model, the power cord further comprises a non-woven fabric layer, the non-woven fabric layer is wrapped outside the conductor assembly, a signal wire bundle is arranged in a ring shape outside the periphery of the non-woven fabric layer, and a semi-conductive special tape is wrapped outside the signal wire bundle.

[0008] According to the power cord provided by the utility model, the power cord further comprises an insulating layer, and the insulating layer is wrapped outside the semi-conductive special tape.

[0009] According to the power cord provided by the utility model, the insulating layer comprises an inner layer body and a semi-conductive layer, the inner layer body is a ceramicized silicone rubber tape wrapped outside the semi-conductive special tape, the semi-conductive layer is attached to the outside of the inner layer body, and the semi-conductive layer is a graphene-containing semiconductor material layer.

[0010] The power line further comprises a composite shielding layer, and the composite shielding layer is coated on the outer side of the insulating layer.

[0011] The power line further comprises a composite shielding layer, and the composite shielding layer is coated on the outer side of the insulating layer.

[0012] The power line further comprises a composite shielding layer, and the composite shielding layer is coated on the outer side of the insulating layer.

[0013] The power line further comprises a composite shielding layer, and the composite shielding layer is coated on the outer side of the insulating layer.

[0014] The power line further comprises a composite shielding layer, and the composite shielding layer is coated on the outer side of the insulating layer.

[0015] The power line further comprises a composite shielding layer, and the composite shielding layer is coated on the outer side of the insulating layer.

[0016] According to the second aspect of the utility model, provide a kind of new energy equipment, including the power line as described above.

[0017] In the power line provided by the utility model, the conductor assembly includes a center wire bundle and a peripheral conductor layer. The peripheral conductor layer is arranged on the outer side of the center wire bundle to form a "center-peripheral" composite arrangement structure. The center wire bundle is a bundle formed by a plurality of metal fiber wires, and the peripheral conductor layer is a bundle formed by a plurality of tinned copper wires. The center wire bundle and the peripheral conductor layer are integrated into a conductor assembly through mutual twisting.

[0018] According to the above description, by the composite structure of "metal fiber center bundle + tinned copper wire peripheral layer", combined with the arrangement mode of bundle twisting + re-twisting, the bending resistance of the conductor assembly is greatly reduced, the flexibility is significantly improved, and the conductor assembly is more easily laid in a narrow space and frequently bent and adjusted. And the center bundle uses lightweight metal fiber instead of part of copper material, which effectively reduces the weight of the conductor assembly and even the entire power line under the premise of ensuring the conductor conductivity, reduces the construction and transportation cost and installation burden, and meets the needs of flexible deployment of new energy equipment. The structure design with high flexibility makes the power line more uniform in stress during bending and laying, avoids the local stress concentration phenomenon of traditional rigid conductor, reduces the hidden damage that is not easy to detect, and improves the use reliability and service life of the power line.

[0019] Further, in the new energy equipment provided by the present application, since it comprises the power line as described above, it also has the advantages as described above. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the present application or prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor based on these drawings.

[0021] Figure 1 is a structural schematic view of the power line provided by the present application.

[0022] Reference signs: 100, conductor assembly; 200, non-woven fabric layer; 300, signal wire bundle; 400, semi-conductive special dragon tape; 500, insulating layer; 600, composite shielding layer; 700, outer sheath. DETAILED DESCRIPTION

[0023] The embodiments of the present application will be further described in detail below in combination with the drawings and examples. The following examples are used to illustrate the present application, but cannot be used to limit the scope of the present application.

[0024] In the description of the embodiments of the utility model, it needs to explain, the term "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and so on indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawing, only for the convenience of describing the utility model embodiments and simplifying the description, and it is not indicated or implied that the device or element indicated must have a particular orientation, a particular orientation and operation, therefore it cannot be understood as the limitation of the utility model embodiments. In addition, the term "first", "second" is only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0025] In the description of the embodiments of the utility model, it needs to explain, unless otherwise explicitly specified and limited, the term "connected", "connection" should be broad understanding, for example, it can be fixed connection, also can be detachable connection, or integral connection, can be mechanical connection, also can be electrical connection, can be directly connected, also can be indirectly connected through the intermediate medium. For ordinary skilled in the art, the specific meaning of the above-mentioned terms in the embodiments of the utility model can be understood according to specific circumstances.

[0026] In the embodiments of the utility model, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through the intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0027] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in any one or more embodiments or examples. In addition, the different embodiments or examples described in the present application and the features of the different embodiments or examples can be combined and combined by those skilled in the art without contradiction to make the purpose, technical solution and advantages of the present application more clear. The technical solutions of the embodiments of the present application will be described clearly and completely in combination with the drawings of the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0028] The following will be described in combination with Figure 1 The power cord and new energy equipment provided by the embodiments of the present application are described. It should be understood that the following description is only a schematic embodiment of the present application and does not constitute any special limitation on the present application.

[0029] The embodiments of the first aspect of the present application provide a power cord and new energy equipment, as shown in Figure 1 The conductor assembly 100 includes a central bundle of filaments and a peripheral conductor layer, and the peripheral conductor layer is arranged outside the central bundle of filaments. The central bundle of filaments includes a plurality of metal fiber filaments bundled and twisted, the peripheral conductor layer includes a plurality of tinned copper filaments bundled and twisted, and the central bundle of filaments and the peripheral conductor layer are mutually twisted.

[0030] In other words, the power cord provided by the present application includes a conductor assembly 100. The conductor assembly 100 includes a central bundle of filaments and a peripheral conductor layer, and the peripheral conductor layer is arranged outside the central bundle of filaments, forming a "central-peripheral" composite arrangement structure. The central bundle of filaments is a bundle of a plurality of metal fiber filaments, the peripheral conductor layer is a bundle of a plurality of tinned copper filaments, and the central bundle of filaments and the peripheral conductor layer are integrally connected by mutual twisting.

[0031] According to the above description, by the composite structure of "metal fiber center bundle + tin-plated copper wire peripheral layer", combined with the arrangement mode of bundle twisting + re-twisting, the bending resistance of the conductor assembly 100 is greatly reduced, the flexibility is significantly improved, and it is easier to lay and frequently bend and adjust in a narrow space. The center bundle uses lightweight metal fiber instead of part of copper material, which effectively reduces the weight of the conductor assembly 100 and even the entire power line under the premise of ensuring the conductor conductivity, reduces the construction and transportation cost and installation burden, and meets the flexible deployment demand of new energy equipment. The structure design with high flexibility makes the power line bear more evenly during bending and laying, avoids the local stress concentration phenomenon of traditional rigid conductor, reduces the hidden damage that is not easy to detect, and improves the use reliability and service life of the power line.

[0032] In an embodiment of the present application, as shown in Figure 1 The power line further comprises: a non-woven fabric layer 200, the non-woven fabric layer 200 is wrapped to the outer side of the conductor assembly 100; a signal wire bundle 300, the signal wire bundle 300 is arranged in a ring shape to the outer periphery of the non-woven fabric layer 200; and a semi-conductive Teflon tape 400, the semi-conductive Teflon tape 400 is wrapped to the outer side of the signal wire bundle 300.

[0033] In an embodiment of the present application, as shown in Figure 1 The power line further comprises: an insulating layer 500, the insulating layer 500 is wrapped to the outer side of the semi-conductive Teflon tape 400.

[0034] In another embodiment of the present application, the insulating layer 500 comprises: an inner layer body, the inner layer body is a ceramicized silicone rubber tape wrapped to the outer side of the semi-conductive Teflon tape 400; and a semi-conductive layer, the semi-conductive layer is attached to the outer side of the inner layer body, and the semi-conductive layer is a graphene-containing semiconductor material layer.

[0035] In an embodiment of the present application, as shown in Figure 1 The power line further comprises: a composite shielding layer 600, the composite shielding layer 600 is wrapped to the outer side of the insulating layer 500.

[0036] Further, in an embodiment of the present application, the composite shielding layer 600 comprises: a semi-conductive non-woven fabric, the semi-conductive non-woven fabric is wrapped to the outer side of the insulating layer 500; and a metal carbon fiber braid, the metal carbon fiber braid is wrapped to the outer side of the semi-conductive non-woven fabric, and the surface of the monofilament of the metal carbon fiber braid is provided with a graphene modification layer.

[0037] The braiding density of the metal carbon fiber braid is greater than or equal to 81.8%, and the braiding angle of the metal carbon fiber braid is between 45° and 60°.

[0038] In an embodiment of the present application, as shown in Figure 1As shown, the power cord also includes an outer sheath 700, which covers the outside of the composite shielding layer 600.

[0039] Specifically, such as Figure 1 As shown, based on the conductor assembly 100 mentioned above, the power cord is provided with a non-woven fabric layer 200, a signal harness 300, a semi-conductive terylene tape 400, an insulation layer 500, a composite shielding layer 600, and an outer sheath 700 from the inside out. The various structures work together to achieve high flexibility and high shielding.

[0040] The conductor assembly 100 is wrapped with a non-woven fabric layer 200. For example, the non-woven fabric layer 200 is a lightweight and thin material with a thickness of 0.1 mm, which can provide basic protection for the internal conductor assembly 100 while also taking into account the lightweight characteristics of the power cord. On the outer periphery of the non-woven fabric layer 200, the signal harness 300 is arranged in a tight ring, providing a stable signal transmission foundation for subsequent fault detection.

[0041] The signal harness 300 is wrapped with a layer of semi-conductive terylene tape 400. The overlap rate of the semi-conductive terylene tape 400 is controlled between 15% and 20%. This not only achieves full coverage and protection of the signal harness 300, but also plays a role in homogenizing the electric field, avoiding local structural damage caused by electric field concentration, and ensuring the stability of the internal structure of the power line.

[0042] The semi-conductive terylene strip 400 is covered by an insulating layer 500. This insulating layer 500 adopts a double-layer structure design, including an inner body and a semi-conductive layer. The inner body is made of ceramicized silicone rubber, tightly wrapped around the outside of the semi-conductive terylene strip 400. It has excellent high-temperature resistance, aging resistance, and insulation properties, effectively blocking the influence of the external environment on the internal conductors and signal harness 300, and is suitable for the complex operating conditions of new energy equipment. The outer side of the inner body is bonded with a semi-conductive layer, which is a graphene-containing semi-conductive material layer. It is formed by treating ceramicized silicone rubber with graphene emulsion and then baking and curing it at 180°C. This further optimizes the electric field homogenization effect and, together with the inner body, forms a double insulation protection, reducing the risk of insulation damage and ensuring the safe use of the power cord.

[0043] An insulating layer 500 is surrounded by a composite shielding layer 600, which is composed of a semi-conductive non-woven fabric and a metal carbon fiber braid. The semi-conductive non-woven fabric is wrapped around the outside of the insulating layer 500, forming the first layer of shielding protection and simultaneously assisting in homogenizing the electric field, providing a flat covering base for the metal carbon fiber braid. The metal carbon fiber braid is wrapped around the outside of the semi-conductive non-woven fabric. The monofilaments of the metal carbon fiber braid are woven after being treated with graphene emulsion, with a braiding density ≥81.8% and a braiding angle between 45° and 60°. This structural design enables the composite shielding layer 600 to achieve a shielding effectiveness ≥70dB at a frequency of 1GHz, reducing the signal transmission bit error rate to 10.-9 The following effectively blocks external electromagnetic interference and ensures stable transmission of power and signals.

[0044] The outer sheath 700 is coated outside the composite shielding layer 600, and is made of a thermoplastic polyurethane (TPU) base material and added with nano-silicon dioxide and carbon black, which can significantly enhance the weather resistance, mechanical strength and wear resistance of the outer sheath 700, and adapt to complex outdoor use environments.

[0045] For example, the thickness of the outer sheath 700 is 1.5 mm, which controls the overall weight while providing sufficient protection strength, and the outer surface is provided with corrugated anti-slip lines with a depth of 0.3 mm through a laser engraving process, which can increase the holding friction during construction, avoid slipping during laying, improve construction convenience, and meet the actual needs of new energy equipment construction scenes.

[0046] In an embodiment of the utility model, the conductor assembly 100, the non-woven fabric layer 200, the signal wire harness 300, the semi-conductive special dragon tape 400, the insulating layer 500, the composite shielding layer 600 and the outer sheath 700 jointly constitute a cable.

[0047] The power line further comprises: a mounting connector connected to both ends of the cable; a detection device arranged in the mounting connector, and electrically connected with the signal wire harness 300, for detecting the breaking state of the signal wire harness 300; an alarm device arranged in the mounting connector; and a control device arranged in the mounting connector, electrically connected with the detection device and the alarm device, for controlling the alarm state of the alarm device based on the number of broken signals detected by the detection device.

[0048] Specifically, to solve the problem that the damage of the existing power line for new energy equipment after construction is not easy to find, the power line is further provided with a mounting connector, a detection device, an alarm device and a control device, and each component cooperates to realize fault detection and alarm function.

[0049] The mounting connector is fixedly connected to both ends of the cable, and the connection mode adopts a sealing assembly structure adapted to the outer diameter of the cable, to ensure the sealing and mechanical stability of the connection between the connector and the cable body, avoid impurities such as water and dust entering the inside during outdoor use, and affect the electrical performance. The material of the mounting connector is selected to be a weather-resistant material compatible with the outer sheath 700, and forms a tightly connected state with the outer sheath 700 of the cable, to ensure the consistency and durability of the overall structure.

[0050] The detection device is arranged in the installation joint, and a signal detection end of the detection device is in stable electrical connection with the signal wire harness 300. Since the signal wire harness 300 is arranged in a ring shape and is closely arranged at the outer periphery of the non-woven fabric layer 200, the detection device can monitor the conduction state of each signal wire in real time through the corresponding electrical connection with each signal wire, and thus accurately detect the breakage of the signal wire harness 300. The detection logic of the detection device is adapted to the ring-shaped arrangement structure of the signal wire harness 300, and can quickly identify the number of broken signal wires, so as to provide accurate detection data for subsequent alarm control.

[0051] The alarm device is also arranged in the installation joint and is provided with a wireless sending module, which can realize remote transmission of fault information. The control device is integrated on a circuit board in the installation joint and is in stable electrical connection with the detection device and the alarm device, so as to form a complete control loop.

[0052] When the cable is damaged due to building construction or other external factors after laying, the signal wires of the signal wire harness 300 are broken. When the number of broken signal wires detected by the detection device reaches the preset alarm requirement, a trigger signal is immediately sent to the control device. After receiving the signal, the control device quickly starts the alarm control logic and instructs the alarm device to transmit the specific information (such as the fault position and the number of broken signal wires) of the fault point to the preset receiving terminal through the built-in wireless sending module, so as to realize rapid positioning and notification of the fault, facilitate timely troubleshooting and maintenance of the staff, and avoid safety hazards or equipment failure caused by hidden damage.

[0053] The second aspect of the embodiment of the utility model provides a new energy equipment, including the power line as described above.

[0054] Further, in the new energy equipment provided by the utility model, since it includes the power line as described above, it also has the advantages as described above.

[0055] Finally, it should be pointed out that: the above embodiments are only used to illustrate the technical solutions of the utility model, but not to limit them; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A power cord, characterized in that, include: A conductor assembly (100) includes a central filament bundle and a peripheral conductor layer, the peripheral conductor layer surrounding the outside of the central filament bundle; The central wire bundle comprises multiple strands of twisted metal fibers, and the outer conductor layer comprises multiple strands of twisted tin-plated copper wires. The central wire bundle and the outer conductor layer are intertwined.

2. The power cord according to claim 1, characterized in that, The power cord also includes: A nonwoven fabric layer (200) is wrapped around the outside of the conductor assembly (100); Signal harness (300), the signal harness (300) is arranged in a ring around the outer periphery of the nonwoven fabric layer (200); A semi-conductive tertrol tape (400) is wrapped around the outside of the signal harness (300).

3. The power cord according to claim 2, characterized in that, The power cord also includes: An insulating layer (500) is provided, which covers the outside of the semiconductive tertrol strip (400).

4. The power cord according to claim 3, characterized in that, The insulating layer (500) includes: The inner body is a ceramicized silicone rubber tape wrapped around the outside of the semiconductive tertrol tape (400); A semiconductive layer is attached to the outer side of the inner layer body, and the semiconductive layer is a graphene-containing semiconductor material layer.

5. The power cord according to claim 3, characterized in that, The power cord also includes: A composite shielding layer (600) is provided, which covers the outside of the insulating layer (500).

6. The power cord according to claim 5, characterized in that, The composite shielding layer (600) includes: A semi-conductive non-woven fabric, the semi-conductive non-woven fabric being wrapped around the outside of the insulating layer (500); A metal carbon fiber braid, wherein the metal carbon fiber braid covers the outer side of the semi-conductive nonwoven fabric, and the surface of the monofilament of the metal carbon fiber braid is provided with a graphene-modified layer.

7. The power cord according to claim 6, characterized in that, The braiding density of the metal carbon fiber braid is ≥81.8%, and the braiding angle of the metal carbon fiber braid is between 45° and 60°.

8. The power cord according to claim 5, characterized in that, The power cord also includes: Outer sheath (700), the outer sheath (700) covers the outside of the composite shielding layer (600).

9. The power cord according to claim 8, characterized in that, The conductor assembly (100), the non-woven fabric layer (200), the signal harness (300), the semi-conductive terylene tape (400), the insulation layer (500), the composite shielding layer (600), and the outer sheath (700) together constitute the cable; The power cord also includes: Mounting connectors are connected to both ends of the cable; A detection device is installed inside the mounting joint and is electrically connected to the signal harness (300) for detecting the breakage state of the signal harness (300). An alarm device is installed within the mounting joint. A control device is installed inside the mounting joint and is electrically connected to the detection device and the alarm device, respectively. The control device is used to control the alarm status of the alarm device based on the number of broken signal lines detected by the detection device.

10. A new energy device, characterized in that, Includes the power cord as described in any one of claims 1 to 9.

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