An internet of things fuse with remote alarm function

Abstract

The utility model discloses a kind of internet-of-things fuse with remote alarm function, it is related to fuse technical field, and it includes: fuse body, fuse tube and waterproof cover are equipped on the fuse body, duck-billed tongue is movably equipped on the waterproof cover, spring is connected between the duck-billed tongue and waterproof cover, pressure sensor is equipped between the spring and duck-billed tongue;Miniature internet-of-things alarm component is clamped on the waterproof cover, and the miniature internet-of-things alarm component includes shell, main control chip, wireless communication unit and power supply unit are installed in the shell, and the main control chip is connected with cloud platform by wireless communication unit communication.The utility model is equipped with pressure sensor between duck-billed tongue and spring of fuse body, when fuse fuse, duck-billed tongue pops out, pressure mutation is perceived by pressure sensor, alarm is sent to cloud platform by miniature internet-of-things alarm component, realize remote real-time alarm, without manual inspection, greatly improve operation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of fuse technology, specifically to an Internet of Things fuse with remote alarm function. Background Technology

[0002] Drop-out fuses are the most commonly used overcurrent protection devices in overhead lines of power distribution networks, transformer secondary sides, and photovoltaic combiner boxes. Their working principle is simple and reliable: when a fault current causes the fuse to melt, the fuse tube loses tension and drops, causing the latch to pop out and release the spring's stored energy, thus providing a clear "drop-out" indication.

[0003] However, with the rapid deployment of distribution substations, distributed photovoltaics, 5G micro base stations, and other scenarios, the number of fuses is growing exponentially, and the drawbacks of the traditional "manual inspection" mode are becoming increasingly apparent: fuses are often located in unattended areas such as remote mountainous areas, offshore photovoltaics, and rooftop base stations, resulting in long inspection cycles. If a blown fuse is not detected in time, it will lead to line failure, long-term shutdown of photovoltaic arrays, and communication base station outages, causing significant power losses and communication interruptions. Utility Model Content

[0004] The purpose of this invention is to provide an IoT fuse with remote alarm function to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an IoT fuse with remote alarm function, comprising: The fuse body is provided with a fuse tube and a waterproof cover. A flap is movably provided on the waterproof cover. A spring is connected between the flap and the waterproof cover. A pressure sensor is provided between the spring and the flap. The waterproof cover is fitted with a micro IoT alarm component, which includes a housing. An alarm light is installed on the outside of the housing. A main control chip, a wireless communication unit, and a power supply unit are installed inside the housing. The pressure sensor is electrically connected to the main control chip. The main control chip is electrically connected to the alarm light and the power supply unit. The main control chip is connected to a cloud platform through the wireless communication unit. The power supply unit includes a main power supply powered by a current transformer and a rechargeable lithium battery. The main power supply is connected to the charging input terminal of the rechargeable lithium battery after passing through a rectification and voltage regulation circuit.

[0006] Furthermore, the surface of the pressure sensor is covered with a ceramic insulating layer. The ceramic layer is arc-resistant and aging-resistant, avoiding sensor breakdown caused by high-temperature arcs or humid environments during melting, thus improving the lifespan and safety of the device.

[0007] Furthermore, the housing has multiple locking blocks on one side corresponding to the waterproof cover, and the waterproof cover has slots corresponding to the positions of the multiple locking blocks. The locking blocks are engaged in the slots, allowing maintenance personnel to replace or repair the micro IoT alarm components with just one hand, significantly reducing installation time.

[0008] Furthermore, a collar is connected to the contact point between the duckbill and the spring, and the pressure sensor is installed inside the collar, which provides radial protection and positioning for the pressure sensor.

[0009] Furthermore, the wireless communication unit supports NB-IoT, LoRa, Wi-Fi, or Bluetooth communication methods, allowing for flexible selection of operator-specific NB-IoT, LoRa, Wi-Fi, or Bluetooth in different scenarios, thereby reducing material management costs.

[0010] Furthermore, the main power supply is connected to the load-side busbar of the fuse body through a current transformer, and the current transformer is directly connected to the load-side busbar of the fuse to draw power.

[0011] Furthermore, the main control chip is connected to an intelligent switching circuit, which connects the main power supply and the rechargeable lithium battery. The main control chip manages the dual power supplies through the intelligent switching circuit.

[0012] The technical effects and advantages provided by this utility model in the above technical solution are as follows: 1. By installing a pressure sensor between the duckbill and the spring in the fuse body, when the fuse blows and the duckbill pops out, the pressure change is detected by the pressure sensor, and an alarm is sent to the cloud platform through the micro IoT alarm component, realizing remote real-time alarm, eliminating the need for manual inspection and greatly improving operation and maintenance efficiency; 2. By providing a power supply unit, which includes a main power supply drawn from a current transformer and a rechargeable lithium battery, the main power supply is connected to the charging input terminal of the rechargeable lithium battery after being rectified and regulated by a voltage regulator circuit. Under normal conditions, the busbar is inductively powered to float charge the rechargeable lithium battery. In the event of a power outage, the rechargeable lithium battery continues to operate, ensuring that alarm information is still reliably uploaded and guaranteeing the reliability of the equipment. 3. The pressure sensor is installed between the duckbill and the spring, and the miniature IoT alarm component is snapped onto the waterproof cover. Installation and disassembly are simple and do not change the size and installation method of the transmission fuse. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram showing the connection between the duck tongue and the pressure sensor of this utility model; Figure 3 This is a schematic diagram of the miniature Internet of Things alarm component of this utility model; Figure 4 This is a system circuit connection diagram of this utility model.

[0015] Explanation of reference numerals in the attached figures: 1. Fuse body; 2. Fuse tube; 3. Waterproof cover; 4. Duck tongue; 5. Spring; 6. Pressure sensor; 7. Miniature IoT alarm component; 8. Housing; 9. Alarm light; 10. Main control chip; 11. Wireless communication unit; 12. Power supply unit; 13. Main power supply; 14. Lithium battery; 15. Card block; 16. Sleeve. Detailed Implementation

[0016] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0017] This utility model provides, for example Figures 1 to 4 An IoT fuse with remote alarm function, as shown, includes: The fuse body 1 is provided with a fuse tube 2 and a waterproof cover 3. A duckbill 4 is movably provided on the waterproof cover 3. A spring 5 is connected between the duckbill 4 and the waterproof cover 3. A pressure sensor 6 is provided between the spring 5 and the duckbill 4. A micro IoT alarm component 7 is snapped onto the waterproof cover 3. The micro IoT alarm component 7 includes a housing 8. An alarm light 9 is installed on the outside of the housing 8. A main control chip 10, a wireless communication unit 11, and a power supply unit 12 are installed inside the housing 8. The pressure sensor 6 is electrically connected to the main control chip 10. The main control chip 10 is electrically connected to the alarm light 9 and the power supply unit 12. The main control chip 10 is connected to a cloud platform through the wireless communication unit 11. The power supply unit 12 includes a main power supply 13 powered by a current transformer and a rechargeable lithium battery 14. The main power supply 13 is connected to the charging input terminal of the rechargeable lithium battery 14 after passing through a rectification and voltage regulation circuit.

[0018] The surface of pressure sensor 6 is covered with a ceramic insulating layer. The ceramic layer is arc-resistant and aging-resistant, avoiding sensor breakdown caused by high-temperature arc at the moment of melting or humid environment, thus improving the life and safety of the device.

[0019] A collar 16 is connected to the contact point between the duck tongue 4 and the spring 5. The pressure sensor 6 is installed inside the collar 16, which provides radial protection and positioning for the pressure sensor 6.

[0020] The wireless communication unit 11 supports NB-IoT, LoRa, Wi-Fi or Bluetooth communication methods, and can flexibly select the operator's NB-IoT, LoRa, Wi-Fi or Bluetooth in different scenarios to reduce material management costs.

[0021] The main power supply 13 is connected to the load side busbar of the fuse body 1 through a current transformer, and the current transformer is directly connected to the load side busbar of the fuse to draw power.

[0022] The main control chip 10 is connected to an intelligent switching circuit. The main control chip 10 is connected to the main power supply 13 and the rechargeable lithium battery 14 through the intelligent switching circuit. The main control chip 10 manages the dual power supplies through the intelligent switching circuit.

[0023] In this invention, a pressure sensor 6 is provided between the duckbill 4 of the fuse body 1 and the spring 5. When the fuse melts and the duckbill 4 pops out, the pressure change is sensed by the pressure sensor 6. The pressure sensor 6 transmits the signal to the main control chip 10 in the micro IoT alarm component 7. The main control chip 10 sends alarm information to the cloud platform through the wireless communication unit 11 to realize remote real-time alarm, eliminating the need for manual inspection and greatly improving operation and maintenance efficiency. The power supply unit 12 includes a main power supply 13 powered by a current transformer and a rechargeable lithium battery 14. The main control chip 10 manages the dual power supply through an intelligent switching circuit. Under normal conditions, the busbar is inductively powered to supply power to the electrical components in the micro IoT alarm component 7 and to float charge the rechargeable lithium battery 14. When there is a power outage, the main control chip 10 controls the rechargeable lithium battery 14 to work and supply power, ensuring that the alarm information is still reliably uploaded.

[0024] like Figure 1 and Figure 3 As shown, the housing 8 has multiple locking blocks 15 on one side corresponding to the waterproof cover 3, and the waterproof cover 3 has slots corresponding to the multiple locking blocks 15, with the locking blocks 15 engaging in the slots.

[0025] In this invention, the miniature IoT alarm component 7 is connected to the waterproof cover 3 by a snap-fit ​​block 15, making installation very simple and easy to disassemble later. Maintenance personnel can replace or repair the miniature IoT alarm component 7 with just one hand, greatly shortening the installation time.

[0026] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An IoT fuse with remote alarm function, characterized in that, include: The fuse body (1) is provided with a fuse tube (2) and a waterproof cover (3). A duck tongue (4) is movably provided on the waterproof cover (3). A spring (5) is connected between the duck tongue (4) and the waterproof cover (3). A pressure sensor (6) is provided between the spring (5) and the duck tongue (4). The waterproof cover (3) is snapped with a micro IoT alarm component (7). The micro IoT alarm component (7) includes a housing (8). An alarm light (9) is installed on the outside of the housing (8). A main control chip (10), a wireless communication unit (11), and a power supply unit (12) are installed inside the housing (8). The pressure sensor (6) is electrically connected to the main control chip (10). The main control chip (10) is electrically connected to the alarm light (9) and the power supply unit (12). The main control chip (10) is connected to a cloud platform through the wireless communication unit (11). The power supply unit (12) includes a main power supply (13) powered by a current transformer and a rechargeable lithium battery (14). The main power supply (13) is connected to the charging input terminal of the rechargeable lithium battery (14) after passing through a rectifier and voltage regulator circuit.

2. The IoT fuse with remote alarm function according to claim 1, characterized in that: The surface of the pressure sensor (6) is covered with a ceramic insulating layer.

3. The IoT fuse with remote alarm function according to claim 1, characterized in that: The housing (8) is provided with a plurality of locking blocks (15) on one side corresponding to the waterproof cover (3). The waterproof cover (3) is provided with a slot corresponding to the position of the plurality of locking blocks (15), and the locking blocks (15) are engaged in the slot.

4. The IoT fuse with remote alarm function according to claim 1, characterized in that: A collar (16) is connected to the contact point between the duck tongue (4) and the spring (5), and the pressure sensor (6) is installed inside the collar (16).

5. The IoT fuse with remote alarm function according to claim 1, characterized in that: The wireless communication unit (11) supports NB-IoT, LoRa, Wi-Fi or Bluetooth communication methods.

6. The IoT fuse with remote alarm function according to claim 1, characterized in that: The main power supply (13) is connected to the load side busbar of the fuse body (1) through a current transformer.

7. The IoT fuse with remote alarm function according to claim 1, characterized in that: The main control chip (10) is connected to an intelligent switching circuit, and the main control chip (10) is connected to the main power supply (13) and the rechargeable lithium battery (14) through the intelligent switching circuit.

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