New energy test cable

Abstract

The utility model belongs to the technical field of cables for testing, and particularly relates to a cable for new energy testing, which comprises a conductor, an insulating layer, a shielding layer and an outer sheath. A plurality of conductors are provided, and the plurality of conductors are twisted to form a cable core. The insulating layer wraps the outer side of the cable core. The shielding layer comprises an inner copper strip shielding layer and an outer braided shielding layer, the inner copper strip shielding layer is longitudinally wrapped on the surface of the insulating layer, and the outer braided shielding layer is formed by braiding tinned copper wires. According to the cable for new energy testing, the double-layer shielding structure effectively blocks low-frequency and high-frequency electromagnetic interference, the accuracy and stability of a test signal are ensured, reliable data transmission is provided for new energy testing, the high-temperature-resistant and high-voltage-resistant insulating layer and the weather-resistant rubber outer sheath are adopted, and the service life of the cable is prolonged. The cable can adapt to severe environments such as high temperature, high humidity, acid and alkali corrosion, ultraviolet irradiation and the like, the service life of the cable is prolonged, and the maintenance cost is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of test cable technology, and in particular relates to a new energy test cable. Background Technology

[0002] With the rapid development of the new energy industry, the demand for cables used in new energy testing is increasing daily. During new energy testing, cables need to transmit high-current and high-voltage signals while possessing good anti-interference and environmental resistance. Existing cables, when dealing with the complex operating conditions of new energy testing, suffer from poor electromagnetic interference resistance affecting the accuracy of test signals, and short service life in harsh environments such as high temperature and high humidity. Utility Model Content

[0003] The purpose of this utility model is to provide cables for testing new energy sources, aiming to solve the technical problems in the prior art, such as poor anti-electromagnetic interference capability affecting the accuracy of test signals, and short service life in harsh environments such as high temperature and high humidity.

[0004] To achieve the above objectives, the new energy testing cable provided in this utility model embodiment includes a conductor, an insulation layer, a shielding layer, and an outer sheath. The conductor, insulation layer, shielding layer, and outer sheath are arranged sequentially from the inside to the outside. The insulation layer is disposed on the outside of the conductor and wraps around the conductor. The shielding layer is disposed on the outside of the insulation layer and wraps around the insulation layer. The outer sheath is disposed on the outside of the shielding layer and wraps around the shielding layer.

[0005] The conductor has multiple strands, which are twisted together to form a cable core; the insulation layer is wrapped around the outside of the cable core;

[0006] The shielding layer includes an inner copper strip shielding layer and an outer braided shielding layer. The inner copper strip shielding layer is longitudinally wrapped around the surface of the insulating layer, and the outer braided shielding layer is woven from tin-plated copper wire.

[0007] As an optional embodiment of this utility model, the conductor is made of high-purity oxygen-free copper, and the purity of the high-purity oxygen-free copper conductor is not less than 99.99%.

[0008] As an optional solution of this utility model, the insulating layer is made of high temperature and high pressure resistant insulating material, and the thickness of the insulating layer is 1-2mm.

[0009] As an optional embodiment of this invention, the insulating layer is made of polyimide.

[0010] As an optional solution of this utility model, the braiding density of the outer braided shielding layer is not less than 95%.

[0011] As an optional solution of this utility model, the outer sheath is made of weather-resistant rubber material, and the thickness of the outer sheath is 1-3mm.

[0012] As an optional solution of this utility model, a fixing sleeve is fixedly connected to the outer side of the outer sheath, and a fixing head is provided on the outer side of the fixing sleeve, and the fixing head is threadedly connected to the fixing sleeve.

[0013] The above-mentioned technical solutions in the new energy testing cable provided in this embodiment of the utility model have at least one of the following technical effects:

[0014] The new energy testing cable provided in this application includes a conductor, an insulation layer, a shielding layer, and an outer sheath. The double-layer shielding structure effectively blocks low-frequency and high-frequency electromagnetic interference, ensuring the accuracy and stability of the test signal and providing reliable data transmission for new energy testing. The high-temperature and high-voltage resistant insulation layer and weather-resistant rubber outer sheath enable the cable to adapt to harsh environments such as high temperature, high humidity, acid and alkali corrosion, and ultraviolet radiation, extending the cable's service life and reducing maintenance costs. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A perspective view of the new energy testing cable provided in an embodiment of this utility model.

[0017] Figure 2 A side view of a new energy testing cable provided in an embodiment of this utility model.

[0018] Figure 3 for Figure 2 Sectional view along the middle AA.

[0019] The following are the labeling elements in the figure:

[0020] 1. Conductor; 2. Insulation layer; 3. Shielding layer; 4. Outer sheath.

[0021] 31. Inner copper strip shielding layer; 32. Outer braided shielding layer;

[0022] 41. Fixing sleeve; 42. Fixing head. Detailed Implementation

[0023] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of this utility model, and should not be construed as limiting the utility model.

[0024] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0026] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0027] In one embodiment of this utility model, such as Figures 1-3 As shown, a new energy testing cable is provided, including a conductor 1, an insulation layer 2, a shielding layer 3, and an outer sheath 4. The conductor 1, insulation layer 2, shielding layer 3, and outer sheath 4 are arranged sequentially from the inside to the outside. The insulation layer 2 is located outside the conductor 1 and wraps around the conductor 1. The shielding layer 3 is located outside the insulation layer 2 and wraps around the insulation layer 2. The outer sheath 4 is located outside the shielding layer 3 and wraps around the shielding layer 3.

[0028] The conductor 1 has multiple strands, which are twisted together to form the cable core. The insulation layer 2 is wrapped around the outside of the cable core.

[0029] The shielding layer 3 includes an inner copper strip shielding layer 31 and an outer braided shielding layer 32. The inner copper strip shielding layer 31 is longitudinally wrapped around the surface of the insulating layer 2, and the outer braided shielding layer 32 is woven from tin-plated copper wire.

[0030] Multiple conductors 1 are stranded together to form the cable core, which is made of high-purity oxygen-free copper. Its function is to act as a carrier for current transmission. Due to the excellent conductivity of copper, it effectively reduces resistance and minimizes energy loss during transmission. The working principle is that when a power source is connected, electrons move directionally within conductor 1 to form a current, completing the transmission of electrical energy and providing the necessary power for new energy testing equipment.

[0031] Insulation layer 2 wraps around the outside of the cable core. It uses high-temperature and high-voltage resistant insulation materials, and its main function is to prevent current leakage to the outside, ensuring stable current transmission within conductor 1 and avoiding safety issues or interference with other equipment caused by current leakage. Under harsh testing environments such as high voltage and high temperature, its excellent insulation performance prevents cable breakdown, ensuring the safety and stability of power transmission.

[0032] The shielding layer 3 consists of an inner copper tape shielding layer 31 and an outer braided shielding layer 32. The inner copper tape shielding layer 31 is longitudinally wrapped around the surface of the insulation layer 2, effectively blocking low-frequency electromagnetic interference, such as interference from nearby low-frequency electrical equipment. The outer braided shielding layer 32 is made of tin-plated copper wire with a high braiding density, which can shield high-frequency electromagnetic interference, such as interference from communication signals and radio frequency equipment. Its working principle is to utilize the reflection and absorption characteristics of metals on electromagnetic signals to shield external electromagnetic interference, while preventing electromagnetic interference generated by the current inside the cable from leaking out and affecting the normal operation of other equipment, thus ensuring the accuracy and stability of the test signal.

[0033] The outer sheath 4 is located outside the shielding layer 3. It is made of a specially formulated weather-resistant rubber material, possessing properties such as wear resistance, acid and alkali corrosion resistance, UV resistance, and waterproofing and moisture resistance. It primarily protects the internal conductor 1, insulation layer 2, and shielding layer 3 of the cable from external physical damage, chemical corrosion, and the effects of harsh natural environments, extending the cable's service life and ensuring reliable operation in various complex environments.

[0034] In another embodiment of this invention, conductor 1 is made of high-purity oxygen-free copper, with a purity of not less than 99.99%. Current is generated due to the directional movement of charge. In conductor 1, the outer electrons of copper atoms are relatively active. When a potential difference exists between the two ends of conductor 1, these outer electrons move directionally under the influence of the electric field, thus forming a current. High-purity oxygen-free copper, due to its extremely high purity and minimal internal impurities, experiences less resistance when electrons move within it, allowing electrons to pass through conductor 1 smoothly and achieving efficient energy transmission. The high-purity oxygen-free copper conductor 1, with a purity of not less than 99.99%, significantly reduces the resistance of conductor 1 by reducing impurities. According to the law of resistance, given the same length, cross-sectional area, and temperature of conductor 1, the lower the resistivity of conductor 1, the lower the resistance. Copper itself has a relatively low resistivity, and high-purity oxygen-free copper further optimizes this characteristic. Low resistance means less energy loss in the cable when transmitting the same amount of power, enabling more efficient energy transfer from the power source to the testing equipment. This meets the requirements of high-current, high-voltage signal transmission in new energy testing, reduces heat loss due to resistance, and improves energy efficiency. The presence of impurities may cause uneven local electric field distribution within conductor 1, affecting the directional movement of electrons and reducing the stability of conductivity. High-purity oxygen-free copper avoids this, ensuring stable current transmission in conductor 1 under various operating conditions. It prevents current fluctuations or transmission interruptions due to internal structural issues, providing a continuous and stable power supply for new energy testing equipment and ensuring the smooth progress of the testing process.

[0035] In another embodiment of this invention, the insulation layer 2 is made of a high-temperature and high-voltage resistant insulating material, and its thickness is 1-2 mm. In the atomic structure of the insulating material, electrons are tightly bound around the atomic nucleus, making free movement difficult. This makes it difficult for current to be conducted through the insulation layer 2. In new energy testing cables, the insulation layer 2 wraps around the conductor 1. When the conductor 1 transmits current, the insulating material effectively prevents electrons from escaping from the conductor 1, confining the current inside the conductor 1, thus ensuring that electrical energy is transmitted along a predetermined path and preventing current leakage to the outside of the cable. In new energy testing scenarios, the cable may transmit high-voltage signals. The 1-2 mm thickness of the insulation layer 2, combined with the high-temperature and high-voltage resistant insulating material, can withstand higher voltages without breakdown. It acts like a "wall" against current, preventing short circuits between conductors 1 at different potentials, avoiding equipment damage or safety accidents caused by abnormal current flow, and ensuring the safety of testing equipment and operators. In new energy testing scenarios, the cable may transmit high-voltage signals. The 1-2 mm thickness of the insulation layer 2, combined with the high-temperature and high-voltage resistant insulating material, can withstand higher voltages without breakdown. It acts like a "firewall" to prevent short circuits between conductors 1 at different potentials, avoiding equipment damage or safety accidents caused by abnormal current flow, and ensuring the safety of testing equipment and operators. In new energy testing scenarios, cables may transmit high-voltage signals. The insulation layer 2, with a thickness of 1-2mm, combined with high-temperature and high-voltage resistant insulation materials, can withstand high voltages without breakdown. It acts like a "firewall" to prevent short circuits between conductors 1 at different potentials, avoiding equipment damage or safety accidents caused by abnormal current flow, and ensuring the safety of testing equipment and operators.

[0036] In another embodiment of this invention, the insulating layer 2 is made of polyimide. Polyimide is a polymer material with a highly stable and dense molecular structure. In the insulating layer 2, the polyimide molecules are tightly arranged, forming a physical barrier that can prevent charge conduction. Because the electrons in its molecules are bound in specific chemical bonds and cannot move freely, when current flows through the conductor 1, the polyimide can effectively restrict the escape of electrons, thereby achieving insulation and confining the current inside the conductor 1, ensuring that the transmission of electrical energy follows a predetermined path. High-temperature conditions may exist in new energy testing environments. Polyimide has excellent high-temperature resistance and can work for a long time in environments of 200℃-300℃. Under such high-temperature conditions, polyimide can maintain the stability of its physical and chemical properties and will not deform, melt, or degrade due to high temperatures, thus continuously providing reliable insulation protection for the conductor 1, ensuring the normal operation of the cable under high-temperature conditions, and preventing safety accidents caused by insulation failure. New energy testing often involves the transmission of high-voltage signals. Polyimide possesses excellent corona resistance and high insulation resistance, enabling it to withstand high voltages without breakdown. It forms effective insulation between conductor 1 and the surrounding environment, preventing current leakage even under high voltage, ensuring the safety of testing equipment and operators, while guaranteeing the stability and accuracy of power transmission. Polyimide exhibits strong chemical stability, remaining stable in various acidic and alkaline environments. This allows insulation layer 2 to resist the corrosive effects of chemicals that may be present in the testing environment, preventing insulation performance degradation due to chemical reactions, extending cable lifespan, and ensuring reliable operation in various complex chemical environments. Polyimide possesses good mechanical properties, such as high strength and flexibility. This allows insulation layer 2 to protect conductor 1 while withstanding external forces such as bending, stretching, and compression that the cable may encounter during use, preventing breakage or damage, thus maintaining the overall structural integrity of the cable and ensuring the long-term stability of the insulation effect.

[0037] In another embodiment of this utility model, the braiding density of the outer braided shielding layer 32 is not less than 95%, preferably 100%. The outer braided shielding layer 32 is made of tin-plated copper wire. When there is electromagnetic interference in the external environment, according to the principle of electromagnetic induction, the interference magnetic field will generate an induced current in the metal shielding layer 3. Since the shielding layer 3 is a continuous metal mesh, the induced current will form a magnetic field in it that is opposite to the direction of the interference magnetic field, thereby canceling out part of the external interference magnetic field. A high braiding density means that the gaps in the metal mesh are smaller, which can more effectively block the propagation of electromagnetic waves, like an "electromagnetic barrier", limiting external electromagnetic interference outside the shielding layer 3, and also preventing the electromagnetic signals generated by the current inside the cable from leaking into the external environment.

[0038] In new energy testing environments, various complex electromagnetic signals exist, such as electromagnetic waves generated by high-frequency equipment and electromagnetic radiation during power transmission. The outer braided shielding layer 32, with a braiding density of no less than 95%, can effectively shield against these electromagnetic interferences, ensuring the accuracy and stability of test signals. It prevents external electromagnetic interference from coupling into the cable's interior, affecting the current signal transmitted in conductor 1, avoiding errors or inaccuracies in test data, and ensuring the normal operation of new energy testing equipment.

[0039] The current signals transmitted in cables used for new energy testing may contain sensitive information and may also interfere with surrounding electronic equipment. The outer braided shield 32 can confine the electromagnetic signals inside the cable within the shield 3, preventing them from leaking into the external environment, avoiding interference with surrounding electronic equipment, communication systems, etc., protecting the normal operation of other equipment in the testing environment, and also ensuring the security and confidentiality of test data.

[0040] The outer braided shielding layer 32, made of tin-plated copper wire, possesses a certain strength and toughness, providing additional mechanical protection for the cable. It enhances the cable's tensile, bending, and abrasion resistance, reduces damage to the cable's internal structure caused by external mechanical forces, improves the cable's durability and reliability, and extends its service life.

[0041] In another embodiment of this invention, the outer sheath 4 is made of weather-resistant rubber material, and the thickness of the outer sheath 4 is 1-3 mm. Weather-resistant rubber material has a stable molecular structure and good flexibility and elasticity. When the cable is affected by external environmental factors, such as temperature changes, ultraviolet radiation, or chemical corrosion, the rubber molecules can adapt to these changes through their own structural adjustments, maintaining the integrity and performance stability of the material. The thicker outer sheath 4 can provide buffering and isolation for the internal structure at a physical level, preventing external factors from directly affecting the inside of the cable.

[0042] In outdoor new energy testing scenarios, cables face various climatic conditions. Weather-resistant rubber resists ultraviolet radiation, preventing material aging and brittleness. It also maintains good flexibility under high and low temperatures, preventing cracking due to temperature changes. In high-humidity environments, its waterproof properties prevent moisture from penetrating the cable, avoiding performance degradation of the conductor and other structures due to moisture, ensuring the cable functions normally under different climatic conditions.

[0043] The 1-3mm thickness provides the outer sheath 4 with a certain level of strength. In daily use, the cable may be subjected to external forces such as dragging, friction, and compression. The outer sheath 4 can effectively disperse and buffer these external forces, protecting the internal conductor 1, insulation layer 2, and shielding layer 3 from physical damage, maintaining the electrical performance of the cable, and extending the cable's service life.

[0044] New energy testing environments may contain chemicals such as acids and alkalis. Weather-resistant rubber materials are chemically stable and resistant to most chemicals, preventing them from corroding the outer sheath and thus protecting the internal structure of the cable from damage, ensuring the cable's reliability in complex chemical environments.

[0045] In another embodiment of this utility model, a fixing sleeve 41 is fixedly connected to the outside of the outer sheath 4, and a fixing head 42 is provided on the outside of the fixing sleeve 41. The fixing head 42 is threadedly connected to the fixing sleeve 41. The fixing sleeve 41 is firmly connected to the outside of the outer sheath 4, forming a stable basic structure. The fixing head 42 engages with the fixing sleeve 41 through threads. When it is necessary to fix the cable, the fixing head 42 is rotated, and due to the characteristics of the thread, the fixing head 42 will move axially along the thread direction of the fixing sleeve 41. During the movement, the fixing head 42 can be tightly connected with the corresponding structure on the external device (such as a threaded interface, mounting base, etc.), and the reliable fixation of the cable to the external device is achieved through the tightening action of the threads.

[0046] The new energy testing cable provided in this application has a double-layer shielding structure that effectively blocks low-frequency and high-frequency electromagnetic interference, ensuring the accuracy and stability of the test signal and providing reliable data transmission for new energy testing. It adopts a high-temperature and high-voltage resistant insulation layer 2 and a weather-resistant rubber outer sheath 4, enabling the cable to adapt to harsh environments such as high temperature, high humidity, acid and alkali corrosion, and ultraviolet radiation, extending the service life of the cable and reducing maintenance costs.

[0047] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cable for new energy testing, characterized in that, It includes a conductor, an insulating layer, a shielding layer, and an outer sheath, which are arranged sequentially from the inside to the outside. The insulating layer is disposed on the outside of the conductor and wraps around the conductor. The shielding layer is disposed on the outside of the insulating layer and wraps around the insulating layer. The outer sheath is disposed on the outside of the shielding layer and wraps around the shielding layer. The conductor has multiple strands, which are twisted together to form a cable core; the insulation layer is wrapped around the outside of the cable core; The shielding layer includes an inner copper strip shielding layer and an outer braided shielding layer. The inner copper strip shielding layer is longitudinally wrapped around the surface of the insulating layer, and the outer braided shielding layer is woven from tin-plated copper wire.

2. The cable for new energy testing according to claim 1, characterized in that, The conductor is made of high-purity oxygen-free copper, and the purity of the high-purity oxygen-free copper conductor is not less than 99.99%.

3. The cable for new energy testing according to claim 1, characterized in that, The insulation layer is made of high temperature and high pressure resistant insulation material, and the thickness of the insulation layer is 1-2mm.

4. The cable for testing new energy according to claim 1, characterized in that, The insulating layer is made of polyimide.

5. The cable for testing new energy according to claim 1, characterized in that, The braiding density of the outer braided shielding layer shall not be less than 95%.

6. The cable for testing new energy according to claim 1, characterized in that, The outer sheath is made of weather-resistant rubber material, and the thickness of the outer sheath is 1-3mm.

7. The cable for testing new energy according to claim 1, characterized in that, A fixing sleeve is fixedly connected to the outer side of the outer sheath, and a fixing head is provided on the outer side of the fixing sleeve. The fixing head is threadedly connected to the fixing sleeve.

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