Novel cable

Abstract

The utility model relates to the technical field of cables, in particular to a novel cable, which comprises a conductor, a temperature sensing sensor, an insulating layer, a shielding layer and a sheath layer, the temperature sensing sensor is embedded in the conductor and used for monitoring the problem of the conductor in real time, the insulating layer is arranged outside the conductor, the shielding layer is arranged outside the insulating layer, and the sheath layer is arranged outside the shielding layer. And the sheath layer is arranged outside the shielding layer. According to the novel cable, the technical means of embedding the temperature sensing sensor into the conductor is adopted, so that the cable can monitor the temperature change of the cable in real time, and the problem of overheating damage caused by the fact that the cable cannot sense the temperature in a high-temperature environment in the prior art is effectively solved; therefore, the technical effect of ensuring the safe operation of the cable in a high-temperature and severe environment is realized.

Description

Technical Field

[0001] The utility model relates to a cable device, in particular to a new type of cable. Background Art

[0002] Cables are essential media for power and signal transmission and are widely used in various industrial and civilian applications. With the rapid development of modern industry, the temperature and voltage monitoring capabilities of traditional cables are no longer sufficient, particularly in high-temperature, complex environments such as oil and gas pipeline maintenance, industrial remote sensing, and oil well and mine drilling. To ensure the safety and reliability of cables in high-temperature, harsh environments, cables with temperature and pressure sensing capabilities are becoming a key research area. These cables integrate sensors to enable real-time monitoring of the cable's operating status, effectively improving its safety and reliability.

[0003] Existing temperature- and pressure-sensing cables typically consist of four layers: a central conductor, an insulation layer, a shield, and an outer sheath. Traditional designs involve wrapping the conductor with insulation material, then applying a conductive layer outside the insulation. Finally, the entire cable is sheathed in polyvinyl chloride (PVC) or another sheathing material. These cables are primarily used for power and signal transmission.

[0004] However, with the increasing level of intelligence, the operating environment of cables is becoming increasingly complex. Especially in high-temperature environments, traditional cables often fail to meet the safety requirements of modern industry and are prone to damage or even accidents due to overheating. Therefore, a new type of cable is urgently needed to solve this problem. Utility Model Content

[0005] The purpose of the utility model is to provide a new type of cable which can timely monitor and detect thermal anomalies of itself.

[0006] The technical solution adopted by the present invention to solve the above problems is: a new type of cable, comprising:

[0007] conductor.

[0008] The temperature sensor is embedded in the conductor.

[0009] The insulating layer is arranged outside the conductor.

[0010] The shielding layer is arranged outside the insulating layer.

[0011] The sheath layer is arranged outside the shielding layer.

[0012] Preferably, the conductor comprises a plurality of wires, and the plurality of wires are twisted together to form the conductor.

[0013] Preferably, the insulating layer is coated on the outside of the conductor, and the thickness of the insulating layer is any value between 0.5 mm and 2.5 mm.

[0014] Preferably, a new type of cable further includes a pressure sensor, which is arranged on the surface of the insulating layer and located between the insulating layer and the shielding layer to detect the voltage of the cable.

[0015] Preferably, the shielding layer is a wrapped layer formed of non-woven fabric, and the non-woven fabric is wrapped around the outside of the insulating layer to apply pressure directed toward the conductor to the pressure sensor to limit relative movement between the pressure sensor and the insulating layer.

[0016] Preferably, the thickness of the non-woven fabric is any value between 0.01 mm and 0.1 mm.

[0017] Preferably, the pressure sensor is bonded to the outer surface of the insulating layer.

[0018] Preferably, the sheath layer is coated on the outside of the shielding layer, and the thickness of the sheath layer is any value from 0.5 mm to 3 mm.

[0019] Preferably, the thickness of the sheath layer is 0.7 mm.

[0020] Preferably, the thickness of the sheath layer is any value between 1.0 mm and 2.5 mm.

[0021] Beneficial effects in the embodiments of the present application

[0022] This new cable uses the technical means of embedding temperature sensors inside the conductor. Therefore, the cable can monitor the temperature changes of the cable in real time, effectively solving the problem of overheating and damage caused by the inability of cables to sense temperature in high-temperature environments in the existing technology, thereby achieving the technical effect of ensuring the safe operation of cables in high-temperature and harsh environments. In addition, through the design of a multi-layer structure, the cable has better insulation and anti-interference performance, further improving its reliability and stability in complex industrial environments.

[0023] This new cable has added a pressure sensor and set it on the surface of the insulation layer between the insulation layer and the shielding layer. Therefore, the cable can detect the voltage changes of the cable in real time, effectively solving the hidden danger of abnormal voltage operation of the cable caused by the inability of existing cables to monitor voltage, thereby realizing real-time monitoring of the cable voltage and improving the safety and reliability of the cable in complex power environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic cross-sectional view of a cable in one embodiment of the present invention.

[0025] Among them: 100, conductor; 200, temperature sensor; 300, insulation layer; 400, shielding layer; 500, sheath layer; 600, pressure sensor. DETAILED DESCRIPTION

[0026] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0027] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description created by the present application, unless otherwise specified, "multiple" means two or more.

[0028] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0029] like Figure 1 As shown, in a preferred embodiment of the present application, a new type of cable is proposed, which can be used for temperature and voltage monitoring in high temperature and complex environments, and is particularly suitable for oil and gas pipeline maintenance, industrial remote sensing, oil well and mine drilling and other fields.

[0030] In this embodiment, a new type of cable includes a conductor 100, a temperature sensor 200, an insulating layer 300, a shielding layer 400, and a sheath layer 500. The temperature sensor 200 is embedded in the interior of the conductor 100 to monitor problems of the conductor 100 in real time. The insulating layer 300 is arranged outside the conductor 100, the shielding layer 400 is arranged outside the insulating layer 300, and the sheath layer 500 is arranged outside the shielding layer 400. In summary, the new type of cable embeds the temperature sensor 200 inside the conductor 100 to monitor the temperature changes of the conductor 100 in the cable in real time, thereby effectively solving the problem in the prior art that the cable has difficulty in sensing temperature in a high-temperature environment, resulting in overheating damage, thereby achieving the technical effect of ensuring the safe operation of the cable in high-temperature and harsh environments.

[0031] The conductor 100 is the core part of the cable and is responsible for the transmission of power or signals. In this embodiment, the conductor 100 can be made of copper or aluminum with high conductivity to ensure that the cable has good conductivity in different environments.

[0032] Furthermore, the conductor 100 can be a single-strand or multi-strand twisted conductor 100, which is twisted to form a conductor with good bending resistance and oxidation resistance. The design of the twisted conductor 100 can enhance the flexibility of the cable and adapt to various complex application scenarios.

[0033] The temperature sensor 200 is embedded within the conductor 100 and monitors the temperature of the conductor 100 in real time. The temperature sensor 200, which can be a thermocouple or thermistor, generates a corresponding signal when the temperature of the conductor 100 rises. This signal is transmitted to external detection equipment, enabling real-time monitoring of the cable's internal temperature. This design is particularly suitable for high-temperature environments, such as downhole drilling or high-temperature industrial equipment, ensuring the safe operation of the cable in extreme conditions.

[0034] The insulation layer 300 is extruded around the conductor 100 to isolate it from the outside environment. The insulation layer 300 can be made of cross-linked polyethylene (XLPE) or polyvinyl chloride (PVC), which exhibits excellent heat resistance and voltage resistance. The thickness of the insulation layer 300 can be adjusted based on the specific application scenario.

[0035] Specifically, the thickness of the insulation layer 300 is typically within the range of 0.5-2.5 mm to prevent the cable from breaking down under high voltage conditions. The insulation material is selected to ensure that the cable can operate under high voltage conditions of 2.5 kV to 6.0 kV.

[0036] Shielding layer 400, covering the exterior of insulating layer 300, primarily shields against electromagnetic interference, ensuring stable signal or power transmission within the cable. Shielding layer 400 prevents interference from external electromagnetic signals and is particularly well-suited for industrial equipment requiring precise signal transmission. Shielding layer 400 is particularly crucial in complex electromagnetic environments, effectively reducing electromagnetic noise and ensuring signal purity.

[0037] The sheath layer 500 is positioned outside the shielding layer 400 to protect the cable from external mechanical damage and harsh environmental influences. The sheath layer 500 is typically made of materials such as polyethylene (PE) or polyvinyl chloride (PVC) that are wear-resistant, oil-resistant, and UV-resistant to ensure stable cable performance in a variety of harsh environments. The sheath layer 500 must not only be waterproof and corrosion-resistant but also provide additional mechanical strength to protect the cable from external forces during installation and operation. The thickness of the sheath layer 500 is typically 0.5 mm to 3 mm.

[0038] In some embodiments, to further monitor cable operation, the novel cable also includes a pressure sensor 600. This pressure sensor 600 is located on the surface of the insulation layer 300, between the insulation layer 300 and the shielding layer 400. Its primary function is to detect changes in the cable's internal voltage, thereby enabling real-time voltage monitoring of the cable.

[0039] Specifically, the pressure sensor 600 can be a piezoresistive, piezoelectric, or capacitive sensor, depending on the cable's application requirements. Its operating principle is that when the voltage inside the cable changes, the changes in the electric field are transmitted through the insulation layer 300 to the pressure sensor 600. The pressure sensor 600 detects these changes and generates corresponding electrical signals. These signals are fed back to the monitoring device through the cable's signal transmission channel, enabling real-time monitoring of the cable's internal voltage.

[0040] The pressure sensor 600 is installed on the outer surface of the insulating layer 300 and is located between the insulating layer 300 and the shielding layer 400, thereby reducing mechanical damage and reducing electromagnetic interference. Specifically, the pressure sensor 600 is arranged between the insulating layer 300 and the shielding layer 400, which can avoid it from being directly affected by external mechanical forces, ensuring the stability and long-term working performance of the pressure sensor 600. Among them, the shielding layer 400 can effectively block external electromagnetic interference, ensuring that what the pressure sensor 600 detects is the voltage change inside the cable, rather than the interference signal of the external environment. Furthermore, the pressure sensor 600 is fixed to the surface of the insulating layer 300 by pasting or wrapping, and is protected by the shielding layer 400, so that the sensor can work stably and will not be affected by the bending or movement of the cable.

[0041] In this embodiment, pressure sensor 600 is capable of operating under high voltage and high differential pressure conditions. Its design meets the requirements for voltage monitoring of high-voltage cables within the 2.5kV to 6.0kV range. Pressure sensor 600 offers high precision and fast response, providing timely feedback during sudden voltage fluctuations, thus preventing cable damage caused by voltage anomalies. Furthermore, its high-temperature resistance ensures stable operation in high-temperature environments, making it particularly suitable for use in extreme environments such as oil and gas pipelines and mine drilling.

[0042] Pressure sensor 600 can be connected to external monitoring equipment and transmit real-time voltage information within the cable via the cable's signal transmission lines. Pressure sensor 600 can detect instantaneous voltage changes within the cable, ensuring that the voltage remains within a safe range during cable operation. If the voltage exceeds a set safety threshold, pressure sensor 600 will promptly issue an alarm signal, prompting the operator to take necessary protective measures.

[0043] In this embodiment, the integration of pressure sensor 600 enables the new cable to monitor not only temperature but also voltage, making it particularly suitable for industrial equipment and high-voltage cable applications requiring stable voltage monitoring. The shielding layer 400 protects the pressure sensor 600, ensuring long-term stable operation and further improving the overall reliability and service life of the cable. By integrating temperature and pressure sensing functions, the new cable in this embodiment achieves comprehensive monitoring of the cable's operating status, providing effective safety protection for cable operation in high-temperature and complex environments.

[0044] In some embodiments, the shielding layer 400 is a wrapping layer formed of a non-woven fabric material, which is tightly wrapped around the outside of the insulation layer 300 of the cable. The non-woven fabric material is characterized by its flexibility and durability, and can provide sufficient physical protection while avoiding relative displacement between the internal components of the cable. Through the wrapping design, the non-woven fabric layer can apply a certain amount of pressure to the pressure sensor 600, so that it is tightly attached to the surface of the insulation layer 300, preventing the pressure sensor 600 from being displaced due to vibration or external force during the use of the cable. This pressure is directed to the conductor 100 of the cable, ensuring that there is no relative movement between the pressure sensor 600 and the insulation layer 300, thereby improving the detection accuracy and stability of the sensor.

[0045] In one embodiment, the thickness of the non-woven fabric can be selected between 0.01 mm and 0.1 mm depending on the specific application scenario. Specifically, non-woven fabric materials of different thicknesses perform differently in terms of protecting and compressing the pressure sensor 600. When the non-woven fabric thickness is 0.01 mm, the non-woven fabric wrapping layer is thinner and lighter, which is suitable for cables with higher flexibility requirements. At the same time, it can ensure the lightness and flexibility of the cable in high temperature or frequent bending environments. When the non-woven fabric thickness is 0.1 mm, the non-woven fabric layer provides stronger protection and stability, which is suitable for cables requiring high-strength shielding and mechanical protection, especially in high-voltage and high-mechanical stress environments.

[0046] In some embodiments, the pressure sensor 600 is secured to the outer surface of the insulation layer 300 by bonding. This bonding ensures that the pressure sensor 600 remains firmly attached to the insulation layer 300 during cable use, preventing it from falling off or shifting due to vibration, stretching, or environmental changes. The adhesive material must possess excellent heat resistance and aging resistance, maintaining its adhesion and strength in high-temperature and high-humidity environments to ensure the long-term stable operation of the pressure sensor 600.

[0047] In some embodiments, the sheath layer 500 is coated on the outside of the shielding layer 400, which plays a physical protection role for the entire cable and provides additional mechanical strength. The sheath layer 500 material is usually polyethylene (PE) or polyvinyl chloride (PVC), and its wear resistance, oil resistance, and UV resistance can effectively protect the cable from the influence of the external environment. The thickness of the sheath layer 500 can be selected according to the application requirements of the cable, and specifically can take any value in the range of 0.5mm to 3mm. When the thickness of the sheath layer 500 is 0.5mm, the sheath layer 500 is thinner and is suitable for light cables or cables with higher flexibility requirements, ensuring that the cable can bend or move in a small space. When the thickness of the sheath layer 500 is 1.0mm to 2.5mm, the sheath layer 500 is a medium thickness or thicker structure, which is suitable for environments that require higher mechanical strength and durability, and can provide additional protection in high pressure and high stress environments.

[0048] Furthermore, in certain specific application scenarios, the thickness of the sheath layer 500 can be set to a specific value according to actual needs. For example:

[0049] When the thickness of the jacket layer 500 is 0.7 mm, the jacket layer 500 provides good mechanical protection and a certain degree of flexibility, and is suitable for cable designs requiring moderate protection and certain bending properties.

[0050] When the thickness of the sheath layer 500 is 1.0 mm to 2.5 mm, the sheath layer 500 provides extremely high mechanical strength and external environmental protection, and is particularly suitable for industrial occasions with high pressure and frequent mechanical shocks.

[0051] The above contents described in this specification are merely examples of the present invention. Those skilled in the art of the present invention may make various modifications, additions, or substitute similar methods to the specific embodiments described, as long as they do not deviate from the contents of this specification or exceed the scope defined by the claims, and shall fall within the scope of protection of the present invention.

Claims

1. A new type of cable, characterized in that: include: conductor; a temperature sensor embedded in the conductor; an insulating layer, disposed outside the conductor; a shielding layer, arranged outside the insulating layer; The sheath layer is arranged outside the shielding layer.

2. A new type of cable according to claim 1, characterized in that: The conductor includes a plurality of wires, and the plurality of wires are twisted to form the conductor.

3. A new type of cable according to claim 1, characterized in that: The insulating layer is coated on the outside of the conductor, and the thickness of the insulating layer is any value from 0.5 mm to 2.5 mm.

4. A new type of cable according to claim 1, characterized in that: It also includes a pressure sensor, which is arranged on the surface of the insulating layer and located between the insulating layer and the shielding layer to detect the voltage of the cable.

5. A new type of cable according to claim 4, characterized in that: The shielding layer is a wrapped layer formed of non-woven fabric, which is wrapped around the outside of the insulating layer and applies pressure directed toward the conductor to the pressure sensor to limit relative movement between the pressure sensor and the insulating layer.

6. A new type of cable according to claim 5, characterized in that: The thickness of the non-woven fabric is any value between 0.01 mm and 0.1 mm.

7. A new type of cable according to any one of claims 5 or 6, characterized in that: The pressure sensor is adhered to the outer surface of the insulating layer.

8. A new type of cable according to any one of claims 1 to 6, characterized in that: The sheath layer is covered on the outside of the shielding layer, and the thickness of the sheath layer is any value from 0.5 mm to 3 mm.

9. A new type of cable according to claim 8, characterized in that: The thickness of the sheath layer is 0.7 mm.

10. A new type of cable according to claim 8, characterized in that: The thickness of the sheath layer is any value between 1.0 mm and 2.5 mm.

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