A solar cable loop current temperature monitoring device

Abstract

The utility model discloses a solar cable circulation temperature monitoring devices, include: shell, inductive unit and power supply unit, inductive unit and power supply unit are fixed on the shell, inductive unit includes circulation sensor, temperature sensor and controller, circulation sensor is accessed cable through inductive ring to real -time monitoring the current value of the cable, temperature sensor is pasted cable to real -time monitoring the temperature value of cable, and circulation sensor and temperature sensor all are electrically connected with controller, power supply unit includes first power -on circuit, second power -on circuit, battery and photovoltaic module, first power -on circuit connects controller and inductive ring to with inductive ring obtains the electric energy transmission to controller, second power -on circuit connects controller and battery to with the electric energy transmission of battery to controller, through setting inductive unit and power supply unit, inductive ring or photovoltaic module can stably power inductive unit, has improved the working stability of solar cable circulation temperature monitoring devices.

Description

Technical Field

[0001] This utility model relates to the field of power supply technology, and in particular to a solar cable circulating temperature monitoring device. Background Technology

[0002] Temperature sensors are common sensors used to measure temperature. In the power industry, cable-specific temperature sensors are frequently used to monitor cable temperatures to protect the safety and stability of the power system. By installing cable-specific temperature sensors on cables, the three-phase temperatures of the cable can be monitored in real time. When the temperature exceeds the limit, the sensor will transmit the monitoring data directly to the data acquisition terminal via 2.4G RFID radio frequency technology and immediately sound an alarm so that necessary measures can be taken in a timely manner.

[0003] In cable operation and management, it is common for online cable monitoring devices to go offline. This makes it difficult for staff to determine whether the cable's operating current is too low, the cable is under maintenance, or there has been cable theft. Existing cable circulating current temperature monitoring devices can only obtain power from current transformers, which cannot guarantee the stability of the power supply to these devices. Utility Model Content

[0004] To address the aforementioned issues, the present invention aims to provide a solar cable circulating current temperature monitoring device that can supply electrical energy through an induction ring or photovoltaic modules, thereby improving the operational stability of the solar cable circulating current temperature monitoring device.

[0005] The technical solution adopted by this utility model to solve its problem is:

[0006] This application provides a solar cable circulating current temperature monitoring device, including: a housing, a sensing unit, and a power supply unit. The sensing unit and the power supply unit are fixed to the housing. The sensing unit includes a circulating current sensor, a temperature sensor, and a controller. The circulating current sensor is connected to the cable through a sensing loop to monitor the current value passing through the cable in real time. The temperature sensor is attached to the cable to monitor the temperature value of the cable in real time. Both the circulating current sensor and the temperature sensor are electrically connected to the controller. The power supply unit includes a first power extraction circuit, a second power extraction circuit, a battery, and a photovoltaic module. The first power extraction circuit is connected to the controller and the sensing loop to deliver the electrical energy acquired by the sensing loop to the controller. The second power extraction circuit is connected to the controller and the battery to deliver the electrical energy from the battery to the controller. A voltage regulator circuit is also provided between the battery and the photovoltaic module to deliver the electrical energy acquired by the photovoltaic module to the battery.

[0007] The aforementioned solar cable circulating current temperature monitoring device has at least the following beneficial effects: by setting up a sensing unit and a power supply unit, the sensing ring or photovoltaic module can stably supply power to the sensing unit, avoiding the unstable power supply caused by insufficient current, thus improving the working stability of the solar cable circulating current temperature monitoring device; by setting up a housing and a sensing unit, the circulating current sensor can obtain the cable current value in real time, the temperature sensor can obtain the cable temperature value in real time, and the controller can accurately monitor the cable current value and temperature value, thus improving the ease of use of the solar cable circulating current temperature monitoring device.

[0008] Furthermore, the photovoltaic module includes a photovoltaic panel and connecting wires, with the photovoltaic panel connected to the second power extraction circuit via the connecting wires. By including the photovoltaic panel and connecting wires, the connection flexibility between the photovoltaic module and the second power extraction circuit is improved, and the installation convenience of the solar cable circulating temperature monitoring device is enhanced.

[0009] Furthermore, the connecting wire is connected to the second power supply circuit via an aviation connector, which is fixed to the housing. The aviation connector offers high protection and resistance to extreme environments. By using this connector, the connection stability between the circulating current sensor and the sensing loop can be effectively ensured, preventing false alarms from occurring in the solar cable circulating current temperature monitoring device.

[0010] Furthermore, the photovoltaic panel covers the top of the housing. This structure expands the coverage area of ​​the photovoltaic panel, improves the protective performance of the housing, and extends the service life of the solar cable circulating temperature monitoring device.

[0011] Furthermore, the controller is also connected to a communication module, which is used to transmit the current value and the temperature value. By setting up a communication module, the controller can easily transmit the current value and temperature value to the outside world, so as to realize the real-time monitoring of the current value and temperature value and improve the monitoring performance of the solar cable circulating current temperature monitoring device.

[0012] Furthermore, the communication module is a wireless 485 transmission module. Wireless 485 transmission modules have the advantages of wide communication range and stable data transmission, effectively improving the data transmission stability of the solar cable circulating temperature monitoring device.

[0013] Furthermore, a fixing bracket is provided at the bottom of the outer casing, and the outer casing is detachably connected to the cable through the fixing bracket. By providing the fixing bracket, it is easy to quickly and stably fix the outer casing to the cable, preventing the outer casing from shifting or loosening.

[0014] Furthermore, the number of fixed brackets is two. This structure ensures the stability of the connection between the outer casing and the cable, preventing the outer casing from rotating and affecting the measurement accuracy of the circulating current sensor and temperature sensor, thus ensuring the operational stability of the solar cable circulating current temperature monitoring device.

[0015] Furthermore, the input terminal of the voltage regulator circuit is connected to the photovoltaic module, and the output terminal of the voltage regulator circuit is connected to the battery. The output voltage of the voltage regulator circuit is 12V. By setting up the voltage regulator circuit, it is ensured that the electrical energy generated by the photovoltaic module can be stably transmitted and stored in the battery, avoiding damage caused by excessively high or low input voltage to the battery, and improving the service life of the solar cable circulating temperature monitoring device.

[0016] Furthermore, the outer casing is made of aluminum alloy. Aluminum alloy has the advantages of being lightweight, high-strength, corrosion-resistant, and easy to process. Making the outer casing of the solar cable circulating current temperature monitoring device can effectively reduce the weight of the device and improve its service life.

[0017] The beneficial effects of the aforementioned solar cable circulating current temperature monitoring device are as follows: By setting up a sensing unit and a power supply unit, the sensing ring or photovoltaic module can stably supply power to the sensing unit, avoiding power instability caused by insufficient current, thus improving the working stability of the solar cable circulating current temperature monitoring device; by setting up a housing and a sensing unit, the circulating current sensor can obtain the cable current value in real time, the temperature sensor can obtain the cable temperature value in real time, and the controller can accurately monitor the cable current and temperature values, improving the ease of use of the solar cable circulating current temperature monitoring device; by setting up a photovoltaic panel and connecting wires, the connection flexibility between the photovoltaic module and the second power supply circuit is improved, enhancing the installation convenience of the solar cable circulating current temperature monitoring device; by setting up an aviation connector, the connection stability between the circulating current sensor and the sensing ring can be effectively guaranteed, avoiding false alarms from the solar cable circulating current temperature monitoring device; by setting up a communication module, the controller can easily transmit current and temperature values ​​to the outside, enabling real-time monitoring of current and temperature values, thus improving the monitoring performance of the solar cable circulating current temperature monitoring device; by setting up a fixed bracket, the housing can be quickly and stably fixed to the cable, preventing displacement or loosening of the housing.

[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structural principle of a solar cable circulating temperature monitoring device according to an embodiment of the present invention;

[0020] Figure 2 This is a cross-sectional view of a solar cable circulating temperature monitoring device according to an embodiment of the present invention. Detailed Implementation

[0021] 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 are only used to explain this utility model, and should not be construed as limiting this utility model.

[0022] Reference Figure 1 and Figure 2 This utility model provides a solar cable circulating current temperature monitoring device, including: a housing 100, a sensing unit 200, and a power supply unit 300, the sensing unit 200 and the power supply unit 300 being fixed on the housing 100; the sensing unit 200 includes a circulating current sensor 210, a temperature sensor 220, and a controller 230; the circulating current sensor 210 is connected to the cable 400 through a sensing ring 211 to monitor the current value passing through the cable 400 in real time; the temperature sensor 220 is attached to the cable 400 to monitor the temperature value of the cable 400 in real time, and both the circulating current sensor 210 and the temperature sensor 220 are connected to the controller 230. The controller 230 is electrically connected; the power supply unit 300 includes a first power extraction circuit 310, a second power extraction circuit 320, a battery 330, and a photovoltaic module 340; the first power extraction circuit 310 is connected to the controller 230 and the induction ring 211 to deliver the electrical energy obtained by the induction ring 211 to the controller 230; the second power extraction circuit 320 is connected to the controller 230 and the battery 330 to deliver the electrical energy of the battery 330 to the controller 230; a voltage regulator circuit 350 is also provided between the battery 330 and the photovoltaic module 340, and the voltage regulator circuit 350 is used to deliver the electrical energy obtained by the photovoltaic module 340 to the battery 330.

[0023] By setting up the sensing unit 200 and the power supply unit 300, the sensing ring 211 or the photovoltaic module 340 can stably supply power to the sensing unit 200, avoiding the unstable power supply caused by insufficient current, thus improving the working stability of the solar cable circulating current temperature monitoring device. By setting up the housing 100 and the sensing unit 200, the circulating current sensor 210 can obtain the current value of the cable 400 in real time, the temperature sensor 220 can obtain the temperature value of the cable 400 in real time, and the controller 230 can accurately monitor the current value and temperature value of the cable 400, thus improving the ease of use of the solar cable circulating current temperature monitoring device.

[0024] In another embodiment, the photovoltaic module 340 includes a photovoltaic panel 341 and a connecting wire 342, wherein the photovoltaic panel 341 is connected to the second power extraction circuit 320 via the connecting wire 342. By setting the photovoltaic panel 341 and the connecting wire 342, the connection flexibility between the photovoltaic module 340 and the second power extraction circuit 320 is improved, and the installation convenience of the solar cable circulating temperature monitoring device is enhanced.

[0025] In another embodiment, the connecting wire 342 is connected to the second power supply circuit 320 via an aviation connector 110, which is fixed to the housing 100. The aviation connector 110 has the advantages of high protection and resistance to extreme environments. By setting the aviation connector 110, the connection stability between the circulating current sensor 210 and the sensing ring 211 can be effectively guaranteed, avoiding false alarms from the solar cable circulating current temperature monitoring device.

[0026] In another embodiment, the photovoltaic panel 341 covers the top of the housing 100. This structure expands the coverage area of ​​the photovoltaic panel 341, improves the protection of the housing 100, and extends the service life of the solar cable circulating temperature monitoring device.

[0027] In another embodiment, the controller 230 is also connected to a communication module 231, which is used to transmit current and temperature values. By setting up the communication module 231, the controller 230 can easily transmit current and temperature values ​​to the outside world, so as to realize real-time monitoring of current and temperature values ​​and improve the monitoring performance of the solar cable circulating current temperature monitoring device.

[0028] In another embodiment, the communication module 231 is a wireless 485 transmission module. Wireless 485 transmission modules have the advantages of wide communication range and stable data transmission. The communication module 231, being a wireless 485 transmission module, effectively improves the data transmission stability of the solar cable circulating temperature monitoring device.

[0029] In another embodiment, a fixing bracket 120 is provided below the outer casing 100, and the outer casing 100 is detachably connected to the cable 400 through the fixing bracket 120. By providing the fixing bracket 120, it is easy to quickly and stably fix the outer casing 100 to the cable 400, and to prevent the outer casing 100 from shifting or becoming loose.

[0030] In another embodiment, there are two fixed brackets 120. This structure ensures the stability of the connection between the housing 100 and the cable 400, prevents the housing 100 from rotating, which would affect the measurement accuracy of the circulating current sensor 210 and the temperature sensor 220, and ensures the working stability of the solar cable circulating current temperature monitoring device.

[0031] In another embodiment, the input terminal of the voltage regulator circuit 350 is connected to the photovoltaic module 340, and the output terminal of the voltage regulator circuit 350 is connected to the battery 330. The output voltage of the voltage regulator circuit 350 is 12V. By setting the voltage regulator circuit 350, it is ensured that the electrical energy generated by the photovoltaic module 340 can be stably transmitted and stored in the battery 330, avoiding damage caused by excessively high or low input voltage to the battery 330, and improving the service life of the solar cable circulating temperature monitoring device.

[0032] In another embodiment, the housing 100 is made of aluminum alloy. Aluminum alloy has the advantages of being lightweight, high-strength, corrosion-resistant, and easy to process. Making the housing of aluminum alloy can effectively reduce the weight of the solar cable circulating current temperature monitoring device and improve its service life.

[0033] The working principle of this utility model will be further explained below.

[0034] During the installation of the solar cable circulating temperature monitoring device in this embodiment, a housing 100 corresponding to the sensing unit 200 and the power supply unit 300 is selected to ensure that the sensing unit 200 and the power supply unit 300 can be stably fixed inside the housing 100. In some embodiments, the controller 230 has up to 11 sensor access ports, enabling various application combinations and solving the adaptability problem of different applications under various complex field applications. For example, the controller 230 can connect to various sensors such as humidity, water immersion, displacement, gas, and smoke to meet different application requirements. Next, the sensing ring 211 is installed on the cable 400. Then, the circulating sensor 210, temperature sensor 220, first power supply circuit 310, second power supply circuit 320, battery 330, communication module 231, and controller 230 are installed on the housing 100. One end of the circulating current sensor 210 is connected to the sensing ring 211, and the other end of the circulating current sensor 210 is connected to the controller 230 and the circulating current sensor 210 respectively. The circulating current sensor 210 is connected to the sensing ring 211 through the first power supply circuit 310 to realize real-time monitoring of the current value in the cable 400. At the same time, the battery 330 is connected to the controller 230 through the second power supply circuit 320. In addition, the communication module 231, the circulating current sensor 210, and the temperature sensor 220 are all electrically connected to the power supply unit 300, and the temperature sensor 220 is attached to the cable 400. Then, the photovoltaic module 340 is installed on the housing 100 so that the photovoltaic panel 341 covers the top of the housing 100, and is connected to the aviation connector 110 through the connecting wire 342, and connected to the voltage regulator circuit 350 and the battery 330. Finally, the housing 100 is fixed to the cable 400 through the fixing bracket 120 to complete the installation of the solar cable circulating current temperature monitoring device. Because the temperature sensor 220, the circulation sensor 210, the battery 330 and the photovoltaic module 340 are accurately positioned, the installation efficiency of the solar cable circulation temperature monitoring device is greatly improved.

[0035] In the use of the solar cable circulating current temperature monitoring device in this embodiment, the circulating current sensor 210 achieves a current measurement range of 0 to 2000A and a measurement accuracy of 0.5 class, solving the problem that existing monitoring devices cannot meet the higher requirements of power grid bidding in some areas. Similarly, the temperature sensor 220 can also accurately monitor the temperature value of the cable 400 in real time. When the reading of the circulating current sensor 210 or the temperature sensor 220 received by the controller 230 exceeds the preset safety value, an alarm signal is sent out through the communication module 231. In practical applications, the first power-taking circuit 310 obtains energy through the current inductance effect via the induction loop 211 to power the controller 230, the circulating current sensor 210, and the temperature sensor 220. At the same time, the photovoltaic panel 341 collects solar energy and converts it into electrical energy, which is stored in the battery 330 through the connecting wire 342 and the voltage regulator circuit 350. When the current in the cable 400 drops below the preset current value and cannot supply power to the controller 230, the controller 230 switches to power supply through the second power-taking circuit 320. At this time, the electrical energy in the battery 330 is transmitted to the controller 230 through the second power supply circuit 320, providing a stable power supply to the controller 230, avoiding the situation where the sensing unit 200 cannot work properly due to unstable power supply or power failure, and improving the working continuity and stability of the solar cable circulating temperature monitoring device.

[0036] As can be seen from the above description, the solar cable circulating current temperature monitoring device of this utility model, by setting up a sensing unit 200 and a power supply unit 300, allows the sensing ring 211 or photovoltaic module 340 to stably supply power to the sensing unit 200, avoiding unstable power supply caused by insufficient current, thus improving the working stability of the solar cable circulating current temperature monitoring device; by setting up a housing 100 and a sensing unit 200, the circulating current sensor 210 can obtain the current value of the cable 400 in real time, the temperature sensor 220 can obtain the temperature value of the cable 400 in real time, and the controller 230 can accurately monitor the current value and temperature value of the cable 400, improving the ease of use of the solar cable circulating current temperature monitoring device; by setting up a photovoltaic panel 341 and a connecting... Connecting wire 342 improves the connection flexibility between photovoltaic module 340 and second power supply circuit 320, enhancing the installation convenience of solar cable circulating current temperature monitoring device; by setting aviation connector 110, the connection stability between circulating current sensor 210 and sensing ring 211 can be effectively guaranteed, avoiding false alarms from solar cable circulating current temperature monitoring device; by setting communication module 231, the controller 230 can easily transmit current and temperature values ​​to the outside, enabling real-time monitoring of current and temperature values ​​and improving the monitoring performance of solar cable circulating current temperature monitoring device; by setting fixed bracket 120, the outer casing 100 can be quickly and stably fixed to cable 400, preventing displacement or loosening of the outer casing 100.

[0037] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A solar cable circulating temperature monitoring device, characterized in that, include: The system comprises a housing, a sensing unit, and a power supply unit, wherein the sensing unit and the power supply unit are fixed to the housing. The sensing unit includes a circulating current sensor, a temperature sensor, and a controller; The circulating current sensor is connected to the cable via an induction loop to monitor the current value passing through the cable in real time; the temperature sensor is attached to the cable to monitor the temperature value of the cable in real time, and both the circulating current sensor and the temperature sensor are electrically connected to the controller; the power supply unit includes a first power extraction circuit, a second power extraction circuit, a battery, and a photovoltaic module; the first power extraction circuit is connected to the controller and the induction loop to deliver the electrical energy acquired by the induction loop to the controller; the second power extraction circuit is connected to the controller and the battery to deliver the electrical energy from the battery to the controller; a voltage regulator circuit is also provided between the battery and the photovoltaic module, and the voltage regulator circuit is used to deliver the electrical energy acquired by the photovoltaic module to the battery.

2. The solar cable circulating temperature monitoring device according to claim 1, characterized in that, The photovoltaic module includes a photovoltaic panel and connecting wires, and the photovoltaic panel is connected to the second power supply circuit through the connecting wires.

3. The solar cable circulating temperature monitoring device according to claim 2, characterized in that, The connecting wire is connected to the second power supply circuit via an aviation connector, which is fixed to the housing.

4. The solar cable circulating temperature monitoring device according to claim 2, characterized in that, The photovoltaic panel covers the top of the outer casing.

5. The solar cable circulating temperature monitoring device according to claim 1, characterized in that, The controller is also connected to a communication module, which is used to transmit the current value and the temperature value.

6. The solar cable circulating temperature monitoring device according to claim 5, characterized in that, The communication module is a wireless transmission module.

7. The solar cable circulating temperature monitoring device according to claim 1, characterized in that, A fixing bracket is also provided at the bottom of the housing, and the housing is detachably connected to the cable through the fixing bracket.

8. A solar cable circulating temperature monitoring device according to claim 7, characterized in that, The number of fixed brackets is two.

9. A solar cable circulating temperature monitoring device according to claim 1, characterized in that, The input terminal of the voltage regulator circuit is connected to the photovoltaic module, the output terminal of the voltage regulator circuit is connected to the battery, and the output voltage of the voltage regulator circuit is 12V.

10. A solar cable circulating temperature monitoring device according to claim 1, characterized in that, The outer casing is made of aluminum alloy.

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