Fuse with intelligent monitoring and remote interaction functions

Abstract

The invention belongs to the technical field of fuses, particularly relates to a fuse with intelligent monitoring and remote interaction functions, and aims to improve the stability and operation and maintenance efficiency of a power supply system. Contacts are arranged at two ends of the insulating pillar, the fuse carrier is hinged with the insulating pillar through a lower hook connecting piece, and a moving contact and a fixed contact of the fuse carrier are in friction fit so as to limit hinged connection; the monitoring assembly is installed on the fusion tube and comprises a current monitoring unit, a dynamic position monitoring unit and a self-power-taking unit. The current monitoring unit can master the current state of the fuse wire in real time, so that the electrical load can be regulated and controlled in advance to avoid fusing; the dynamic position monitoring unit can quickly judge the opening and closing state of the fuse carrying body and assist in locking and quick repair of a fault point; the self-power-taking unit ensures stable and lasting power supply of each monitoring unit; through intelligent monitoring and remote interaction, the power supply continuity is effectively improved, and the operation and maintenance cost is reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of fuses, and in particular relates to a fuse with intelligent monitoring and remote interaction and a monitoring method. Background Art

[0002] High-voltage drop-out fuses are a commonly used outdoor high-voltage protective device in power systems. Traditional high-voltage drop-out fuses serve only as mechanical fuse carriers and are unable to monitor line current and opening and closing fault conditions in real time. Manual inspections and positioning are usually required after a fault occurs, which is not only inefficient but also prone to safety hazards (such as contact or arc risks). They also lack data recording and remote interaction capabilities, making them difficult to adapt to the needs of smart grids. Summary of the Invention

[0003] The purpose of the present invention is to address the above-mentioned technical problems and provide a fuse and monitoring method with intelligent monitoring and remote interaction, which can achieve the effect of intelligent detection of line current and opening and closing fault status, and can perform remote data interaction.

[0004] In view of this, the present invention provides a fuse with intelligent monitoring and remote interaction, comprising: Insulating pillar, with fixed contacts at both axial ends; The fuse carrier is installed on the side of the insulating support and includes a melting tube, a fuse axially passing through the melting tube, and a lower hook connector and a moving contact respectively installed at both ends of the melting tube; A monitoring assembly is installed on the fuse tube and includes a current monitoring unit for monitoring the current on the fuse, a dynamic position monitoring unit for monitoring the dynamic position of the fuse carrier, and a self-powered unit for supplying power to each unit; The lower hook connector is used for the hinged connection between the fuse carrier and the insulating support, while the movable contact and the fixed contact adopt friction fit and are used to limit the hinged connection between the fuse carrier and the insulating support.

[0005] In the above technical solution, further: The melting tube is provided with a shell for installing the monitoring component, and the shell is connected to an operating ring for manually opening and closing the load melt, and is installed on the melting tube by screw riveting.

[0006] In the above technical solution, further: The current monitoring unit, dynamic position monitoring unit and self-power unit are integrated into the shell through an integrated potting process.

[0007] In the above technical solution, further: The current monitoring unit includes a mutual inductor, an operational amplifier and a first wireless transmission module. The mutual inductor is used to collect the current flowing through the fuse, the operational amplifier is used to produce signal data, and the first wireless transmission module is used for wireless transmission of signal data.

[0008] In the above technical solution, further: The dynamic position monitoring unit includes a dynamic sensor and a second wireless transmission module, and the dynamic sensor includes a gravity detection unit and a signal processing module; Among them, the gravity detection unit can withstand different gravity components according to the relative positions when opening and closing, forming different potentials, and the signal processing module is used to receive the electrical signal output by the gravity detection unit, and judge whether the fuse is in the open or closed state based on the electrical signal.

[0009] In the above technical solution, further: The self-power unit includes a power supply module and a processing module; Among them, the power supply module includes an alloy strip arranged around the fuse, and a power supply coil is wound on the alloy strip. The processing module includes a rectifier and filter circuit, a power supply regulation and protection circuit, a voltage stabilizing circuit and an RFMCU circuit.

[0010] In the above technical solution, further comprising: The mounting portion is connected to the side of the insulating support away from the fuse carrier and is used for tilting the fuse.

[0011] In the above technical solution, further comprising: Protective cover, installed on the top of the melt carrier.

[0012] In the above technical solution, further, the lower hook connector includes: A hook portion connected to a fixed contact located at the bottom end of the insulating support; The hinged member is sleeved on the bottom end of the melting tube and includes a first connecting portion and a second connecting portion that are hingedly connected; a limiting member, mounted on the second connecting portion and used to limit the hinge connection between the first connecting portion and the second connecting portion; Wherein, the second connecting portion is hingedly connected to the hook portion.

[0013] In the above technical solution, further: The limiting member includes a metal sheet hingedly connected to the second connecting portion, and a torsion spring is provided at the connection between the metal sheet and the second connecting portion, and the tensioning force of the fuse abuts against the first connecting portion to limit the hinge connection between the first connecting portion and the second connecting portion.

[0014] The beneficial effects of the present invention are: 1. By installing a current monitoring unit on the fuse tube, it is easy to know the current situation on the fuse, so that it is possible to promptly understand whether the circuit is overloaded, adjust the power load distribution in advance or take measures to prevent the fuse from blowing, thereby ensuring the continuity of power supply.

[0015] 2. By setting a dynamic position monitoring unit on the melting tube, it is easy to know whether the fuse and the insulating support are in the open or closed state, so that the fault point can be quickly locked, reducing the troubleshooting time and workload of operation and maintenance personnel, speeding up the fault repair speed and shortening the power outage time.

[0016] 3. By setting up a self-powered unit on the melting tube, each unit can be powered to ensure the stability and durability of monitoring.

[0017] 4. By integrating the current monitoring unit, dynamic position monitoring unit and self-power unit into the shell through an integrated potting process, it is convenient to improve the protection and anti-electromagnetic interference effect of each unit, improve the detection accuracy and extend the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a structural diagram of the power taking module of the present invention; The markings in the figure are: 1. Insulating support; 2. Fixed contact; 3. Carrier; 30. Melt tube; 31. Fuse; 32. Lower hook connector; 320. Hook portion; 321. First connection portion; 322. Second connection portion; 323. Metal sheet; 33. Shell; 34. Operating ring; 4. Alloy strip; 5. Power coil; 6. Mounting portion; 7. Protective cover. DETAILED DESCRIPTION

[0019] The following will be combined with the accompanying drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0020] Example 1: This embodiment provides a fuse with intelligent monitoring and remote interaction, including: The insulating support 1 has fixed contacts 2 at both ends of the axial direction; The fuse carrier 3 is installed on the side of the insulating support 1 and includes a melting tube 30, a fuse 31 axially passing through the melting tube 30, and a lower hook connection 32 and a moving contact respectively installed at both ends of the melting tube 30; A monitoring assembly is mounted on the melting tube 30 and includes a current monitoring unit for monitoring the current on the fuse 31, a dynamic position monitoring unit for monitoring the dynamic position of the fuse carrier 3, and a self-powered unit for supplying power to each unit; The lower hook connector 32 is used for the hinge connection between the carrier melt 3 and the insulating support 1, while the movable contact and the fixed contact 2 adopt friction fit and are used to limit the hinge connection between the carrier melt 3 and the insulating support 1; At the same time, the insulating support 1 can be a ceramic support, and the specific friction fit between the moving contact and the fixed contact 2 is an existing mature technology, which can be learned from traditional fuses and will not be repeated here.

[0021] As can be seen from this embodiment, by providing a current monitoring unit on the fuse tube 30, it is easy to know the current situation on the fuse 31, so that it is possible to promptly understand whether there is an overload situation in the circuit, adjust the power load distribution in advance or take measures to prevent the fuse 31 from melting, thereby ensuring the continuity of power supply; By setting a dynamic position monitoring unit on the melting tube 30, it is easy to know whether the fuse carrier 3 and the insulating support 1 are in the open or closed state, so that the fault point can be quickly locked, reducing the troubleshooting time and workload of the operation and maintenance personnel, speeding up the fault repair speed and shortening the power outage time.

[0022] By arranging a self-powered unit on the melting tube 30, power can be supplied to each unit, thereby ensuring the stability and durability of monitoring.

[0023] Example 2: This embodiment provides a fuse with intelligent monitoring and remote interaction. In addition to the technical solutions of the above embodiments, it also has the following technical features: The melting tube 30 is provided with a housing 33 for installing a monitoring assembly, and the housing 33 is connected with an operating ring 34 for manually opening and closing the carrier melt 3 and is mounted on the melting tube 30 by screw riveting.

[0024] It can be seen from this embodiment that the provision of the shell 33 can provide a protective effect on the monitoring component, and the operating ring 34 facilitates manual opening and closing of the fuse, thereby improving the convenience of operating the fuse, and the use of screw riveting can improve the convenience and structural stability of the installation of the shell 33 and the operating ring 34 on the melting tube 30.

[0025] Example 3: This embodiment provides a fuse with intelligent monitoring and remote interaction. In addition to the technical solutions of the above embodiments, it also has the following technical features: The current monitoring unit, the dynamic position monitoring unit and the self-power supply unit are integrated into the housing 33 through an integrated potting process.

[0026] It can be seen from this embodiment that by integrating the current monitoring unit, dynamic position monitoring unit and self-power supply unit into the shell 33 through an integrated potting process, it is convenient to improve the protection and anti-electromagnetic interference effect of each unit, improve the detection accuracy and extend the service life.

[0027] Example 4: This embodiment provides a fuse with intelligent monitoring and remote interaction. In addition to the technical solutions of the above embodiments, it also has the following technical features: The current monitoring unit includes a mutual inductor, an operational amplifier, and a first wireless transmission module. The mutual inductor is used to collect the current flowing through the fuse 31, the operational amplifier is used to generate signal data, and the first wireless transmission module is used for wireless transmission of the signal data. Among them, the mutual inductor can adopt 0.2S level accuracy, and the specific structures of the mutual inductor, operational amplifier and the first wireless transmission module are all existing mature technologies, which can be obtained from traditional mutual inductors, operational amplifiers and wireless transmission modules, and will not be repeated here.

[0028] It can be seen from this embodiment that the current acquisition accuracy can be effectively guaranteed by adopting 0.2S-level precision of the mutual inductor, and the current information of the fuse 31 can be accurately obtained. The operational amplifier amplifies the current signal proportionally, making the data easier to identify and transmit. Finally, the processed current information is transmitted to the acquisition unit through the wireless transmission module, realizing intelligent and remote monitoring of the fuse current, facilitating timely grasp of the current status, and providing accurate current basis for fuse operation status analysis, fault warning, etc.

[0029] Example 5: This embodiment provides a fuse with intelligent monitoring and remote interaction. In addition to the technical solutions of the above embodiments, it also has the following technical features: The dynamic position monitoring unit includes a dynamic sensor and a second wireless transmission module, and the dynamic sensor includes a gravity detection unit and a signal processing module; The gravity detection unit can withstand different gravity components according to the relative positions when the switch is open and closed, thereby forming different potentials. The signal processing module is used to receive the electrical signal output by the gravity detection unit and determine whether the fuse is in the open or closed state based on the electrical signal. At the same time, the gravity detection unit is a gravity detection sensor, and the specific structures of the gravity detection unit and the signal processing module are existing mature technologies, which can be learned from traditional gravity detection sensors and model processing modules and will not be repeated here.

[0030] It can be seen from this embodiment that the opening and closing states are judged by the change in the gravity component, the dynamic state of the fuse carrier 3 can be accurately identified, and the signal is transmitted through the second wireless transmission module, so that the opening and closing states of the fuse can be known remotely, and the fault point can be quickly locked, which reduces the troubleshooting time and workload of the operation and maintenance personnel, speeds up the fault repair speed, and shortens the power outage time.

[0031] Example 6: This embodiment provides a fuse with intelligent monitoring and remote interaction. In addition to the technical solutions of the above embodiments, it also has the following technical features: The self-power unit includes a power supply module and a processing module; The power supply module includes an alloy strip 4 arranged around the fuse 31, and a power supply coil 5 is wound around the alloy strip 4. The processing module includes a rectifier and filter circuit, a power supply regulation and protection circuit, a voltage stabilization circuit, and an RFMCU circuit. At the same time, the power supply module utilizes the electromagnetic induction generated when there is current flowing on the fuse 31 to obtain electrical energy, and the specific structures of the rectifier and filter circuit, the power supply regulation and protection circuit, the voltage stabilizing circuit and the RFMCU circuit are all existing mature technologies, which can be obtained from traditional rectifier and filter circuits, the power supply regulation and protection circuit, the voltage stabilizing circuit and the RFMCU circuit, and will not be repeated here.

[0032] It can be seen from this embodiment that the current of the fuse 31 is utilized to draw power through the alloy strip 4 and the power taking coil 5 according to the principle of electromagnetic induction, so that the monitoring component does not need an external power supply, is energy-saving, environmentally friendly and easy to install. Rectification, filtering, voltage stabilization and other circuit processing can ensure stable power supply, provide continuous and reliable power supply for current monitoring units, dynamic position monitoring units, etc., ensure the normal operation of each intelligent monitoring unit, improve the independence and stability of the overall intelligent monitoring of the fuse, and reduce the power management cost during operation and maintenance.

[0033] Example 7: This embodiment provides a fuse with intelligent monitoring and remote interaction. In addition to the technical solutions of the above embodiments, it also has the following technical features, including: The mounting portion 6 is connected to a side of the insulating support 1 away from the fuse carrier 3 and is used for tilted mounting of the fuse.

[0034] It can be seen from this embodiment that the setting of the mounting portion 6 can facilitate the inclined installation of the fuse, so that in the event of a short circuit, the top of the fuse carrier 3 and the top of the insulating support 1 can be disconnected in a timely manner according to the weight of the fuse carrier 3 itself, thereby ensuring the opening efficiency.

[0035] Example 8: This embodiment provides a fuse with intelligent monitoring and remote interaction. In addition to the technical solutions of the above embodiments, it also has the following technical features, including: The protective cover 7 is installed on the top of the melt carrier 3.

[0036] It can be seen from this embodiment that the provision of the protective cover 7 provides a protective effect on the top of the fuse, while also preventing accidental disconnection caused by a disconnection between the top of the fuse carrier 3 and the top of the insulating support 1, thereby ensuring the stability of power transmission.

[0037] Example 9: This embodiment provides a fuse with intelligent monitoring and remote interaction. In addition to the technical solutions of the above embodiments, it also has the following technical features. The lower hook connector 32 includes: The hook portion 320 is connected to the fixed contact 2 at the bottom end of the insulating support 1; The hinge is sleeved on the bottom end of the melting tube 30 and includes a first connecting portion 321 and a second connecting portion 322 that are hingedly connected; a limiting member, mounted on the second connecting portion 322 and used to limit the hinge connection between the first connecting portion 321 and the second connecting portion 322; The second connection portion 322 is hingedly connected to the hook portion 320 .

[0038] It can be seen from the present embodiment that, through the provision of the hinge and the limit member, when the limit member releases the hinge connection restriction between the first connection part 321 and the second connection part 322, the hinge connection between the first connection part 321 and the second connection part 322 and the hinge connection between the second connection part 322 and the hook part 320 cooperate to make the melt carrier first move downward and then rotate, thereby prompting the top end of the melt carrier 3 to be disconnected from the fixed contact on the insulating support 1, realizing opening, ensuring the stability of the opening, avoiding accidental jamming and affecting the opening, and ensuring the safety of the power transmission equipment.

[0039] Example 10: This embodiment provides a fuse with intelligent monitoring and remote interaction. In addition to the technical solutions of the above embodiments, it also has the following technical features: The limiting member includes a metal sheet 324 hingedly connected to the second connecting portion 322 , and a torsion spring is provided at the connection between the metal sheet 324 and the second connecting portion 322 , and the tensioning force of the fuse 31 abuts against the first connecting portion 321 to limit the hinge connection between the first connecting portion 321 and the second connecting portion 322 .

[0040] As can be seen from the present embodiment, the metal sheet 324 abuts against the first connection portion 321 by relying on the tensioning force of the fuse 31, thereby limiting the hinge connection between the first connection portion 321 and the second connection portion 322. Further, when the fuse 31 blows due to a short circuit or the like, the tensioning force of the fuse 31 applied to the metal sheet 324 disappears, thereby releasing the abutment under the action of the torsion spring, thereby ensuring that the hinge connection between the first connection portion 321 and the second connection portion 322 can rotate, ensuring that the circuit can be cut off in time when a short circuit occurs, so that the fuse 31 short-circuit is disconnected, thereby effectively ensuring the protection of various devices.

[0041] The embodiments of the present application are described above in conjunction with the accompanying drawings. Unless there is a conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. A fuse with intelligent monitoring and remote interaction, characterized in that: include: An insulating support (1) having fixed contacts (2) at both axial ends; The fuse carrier (3) is mounted on the side of the insulating support (1) and includes a melting tube (30), a fuse (31) axially passing through the melting tube (30), and lower hook connectors (32) and a moving contact respectively mounted at both ends of the melting tube (30); A monitoring assembly is mounted on the melting tube (30) and includes a current monitoring unit for monitoring the current on the fuse (31), a dynamic position monitoring unit for monitoring the dynamic position of the fuse carrier (3), and a self-powered unit for supplying power to each unit; The lower hook connector (32) is used for the hinge connection between the fuse carrier (3) and the insulating support (1), while the movable contact and the fixed contact (2) are friction-fitted and used to limit the hinge connection between the fuse carrier (3) and the insulating support (1).

2. The fuse with intelligent monitoring and remote interaction according to claim 1, characterized in that: The melting tube (30) is provided with a housing (33) for installing a monitoring component, and the housing (33) is connected to an operating ring (34) for manually opening and closing the carrier melt (3) and is mounted on the melting tube (30) by screw riveting.

3. The fuse with intelligent monitoring and remote interaction according to claim 2, characterized in that: The current monitoring unit, the dynamic position monitoring unit and the self-power supply unit are integrated into the housing (33) through an integrated potting process.

4. The fuse with intelligent monitoring and remote interaction according to claim 1, characterized in that: The current monitoring unit includes a mutual inductor, an operational amplifier, and a first wireless transmission module, wherein the mutual inductor is used to collect the magnitude of the current flowing through the fuse (31), the operational amplifier is used to produce signal data, and the first wireless transmission module is used for wireless transmission of the signal data.

5. The fuse with intelligent monitoring and remote interaction according to claim 1, characterized in that: The dynamic position monitoring unit includes a dynamic sensor and a second wireless transmission module, and the dynamic sensor includes a gravity detection unit and a signal processing module; Among them, the gravity detection unit can withstand different gravity components according to the different relative positions when opening and closing, forming different potentials, and the signal processing module is used to receive the electrical signal output by the gravity detection unit, and judge whether the fuse is in the open or closed state based on the electrical signal.

6. The fuse with intelligent monitoring and remote interaction according to claim 1, characterized in that: The self-power unit includes a power supply module and a processing module; The power supply module comprises an alloy strip (4) arranged around a fuse (31), and a power supply coil (5) is wound around the alloy strip (4); and the processing module comprises a rectifier filter circuit, a power supply regulation protection circuit, a voltage stabilizing circuit, and an RFMCU circuit.

7. The fuse with intelligent monitoring and remote interaction according to claim 1, characterized in that: Also includes: The mounting portion (6) is connected to a side of the insulating support (1) away from the fuse carrier (3) and is used for tilted mounting of the fuse.

8. The fuse with intelligent monitoring and remote interaction according to claim 1, characterized in that: Also includes: A protective cover (7) is mounted on the top of the melt carrier (3).

9. The fuse with intelligent monitoring and remote interaction according to claim 1, characterized in that: The lower hook connecting member (32) comprises: A hook portion (320) connected to the fixed contact (2) located at the bottom end of the insulating support (1); A hinged member is sleeved on the bottom end of the melting tube (30) and comprises a hinged first connection portion (321) and a second connection portion (322); a limiting member, mounted on the second connecting portion (322) and used to limit the hinge connection between the first connecting portion (321) and the second connecting portion (322); The second connecting portion (322) is hingedly connected to the hook portion (320).

10. The fuse with intelligent monitoring and remote interaction according to claim 9, characterized in that: The limiting member comprises a metal sheet (324) hingedly connected to the second connecting portion (322), and a torsion spring is provided at the connection between the metal sheet (324) and the second connecting portion (322), and the tensioning force of the fuse (31) abuts against the first connecting portion (321) to limit the hinge connection between the first connecting portion (321) and the second connecting portion (322).

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