A smart electronic device for integrated monitoring of IED

Abstract

This utility model relates to the field of power engineering technology, specifically to an intelligent electronic device (IED) for integrated monitoring, comprising a chassis, a fixing mechanism, an execution module, a bus backplane, a display panel, and a device panel. The fixing mechanism is located inside the chassis and is used for quick fixing and disassembly of the execution module. The execution module is mounted on the fixing mechanism and performs different functions based on its internal control boards. A sealed bus backplane is located in front of the execution module, and a display panel is located in front of the sealed bus backplane. The device panel is located in front of the display panel. The execution module, bus backplane, and display panel are all connected by wires.

Description

Technical Field

[0001] This utility model relates to the field of power engineering technology, specifically to an intelligent electronic device (IED) for integrated monitoring. Background Technology

[0002] Integrated monitoring of the status of power distribution equipment is becoming the mainstream solution in the industry. However, due to the large number of operating status parameters of power distribution equipment and the variety of sensor types and data, the standardization and scalability of the devices are insufficient, and there are many product categories, interfaces and structures, which is not conducive to further promotion and application in the industry.

[0003] Existing power distribution equipment condition monitoring products have sensor interfaces including electrical quantities, analog quantities, digital quantities, temperature, pressure, concentration, video, and audio. These signal interfaces also vary significantly in sampling frequencies, ranging from DC signals to low-frequency, high-frequency, and ultra-high-frequency signals. Data acquisition and interaction place diverse performance requirements on IED devices. The numerous data interface types and varying data volumes make single-CPU processing difficult, while data interaction schemes between multiple CPU modules are complex. Furthermore, existing functional modules are mostly bolt-fixed, hindering rapid module replacement.

[0004] Therefore, the present invention provides an intelligent electronic device for comprehensive monitoring of IEDs to solve the above-mentioned problems. Utility Model Content

[0005] The technical problem this invention aims to solve is as follows: Existing power distribution equipment condition monitoring products have sensor interfaces for electrical quantities, analog quantities, switching quantities, temperature, pressure, concentration, video, and audio, among others. These signal interfaces also have vastly different sampling frequencies, including DC signals, low-frequency signals, high-frequency signals, and ultra-high-frequency signals. Data acquisition and interaction place varying performance requirements on IED devices. The numerous data interface types and varying data volumes make it difficult to process data using a single CPU, while data interaction schemes between multiple CPU modules are complex. Furthermore, existing functional modules are mostly fixed with bolts, which hinders the rapid replacement of functional modules.

[0006] This utility model provides the following technical solution: a smart electronic device for comprehensive monitoring of IED, including a chassis, a fixing mechanism, an execution module, a bus backplane, a display panel, and a device panel. The fixing mechanism is provided inside the chassis for quick fixing and disassembly of the execution module. The execution module is mounted on the fixing mechanism and is used to perform different functions according to different control boards inside it. A sealed bus backplane is provided in front of the execution module, a display panel is provided in front of the sealed bus backplane, and a device panel is provided in front of the display panel. The execution module, the bus backplane, and the display panel are all connected by wires.

[0007] Preferably, the fixing mechanism includes a limiting chamber, a locking hole, a locking rod, a limiting plate, a strong spring, an electromagnet, and a limiting hole. The limiting chamber array is opened inside the chassis. The limiting chambers are symmetrically provided with locking holes. A locking rod is slidably installed in the locking hole. One end of the locking rod passes through the limiting chamber and is provided with a limiting plate. A strong spring is provided between the locking rod and the limiting chamber. An electromagnet is provided between the outside of the limiting chamber and the limiting plate. The execution module is provided with a limiting hole corresponding to the locking rod.

[0008] Preferably, the other end of the locking rod is provided with an arc-shaped locking head.

[0009] Preferably, a matching magnet is provided below the limiting disk, and the magnetic poles of the matching magnet are opposite to those of the electromagnet after it is energized.

[0010] Preferably, the execution module includes a power board, a main control board, and a function board. The power board, main control board, and function board are all installed inside the chassis by a fixing mechanism. The function board is provided with eight functions to detect different signals.

[0011] Preferably, one end of the power board, main control board and function board is provided with a communication slot, and the bus backplane is provided with a board slot corresponding to the communication slot.

[0012] Preferably, the bus backplane uses a 9-port 100M Ethernet switching chip to support data interaction and synchronization between the main control board and various functional boards.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. This utility model solves the problem of insufficient bandwidth of the internal inter-board communication bus in conventional devices by setting up an assembly backplane and execution module; at the same time, it meets the problem of different performance requirements of IED devices for different acquisition and interaction and complex communication mechanisms by using the flexibility of Ethernet data exchange; finally, a high-speed bus backplane of the device is designed based on Ethernet switching chip, which facilitates the modular design of each IED device, flexible functional configuration and comprehensive monitoring cost optimization.

[0015] 2. This utility model achieves rapid fixing and disassembly of the execution module through a fixing mechanism composed of a limiting chamber, locking hole, locking rod, limiting plate, strong spring, electromagnet, and limiting hole. The arc-shaped locking head design effectively reduces the contact stress between the locking rod and the limiting hole, while also providing good guidance when the execution module is inserted, further improving installation efficiency and reliability. Furthermore, a matching magnet with opposite poles to the electromagnet is located below the limiting plate, utilizing magnetic interaction to achieve rapid unlocking. This fast response and simple structure reduce wear on mechanical parts and lower maintenance costs. Overall, this utility model significantly improves the efficiency of execution module installation and disassembly, enhances the stability and durability of the device, simplifies the operation process, reduces equipment maintenance costs, and improves the practicality and reliability of the integrated monitoring IED intelligent electronic device. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the chassis of this utility model;

[0019] Figure 3 This is a schematic diagram showing the installation position of the limiting hole in this utility model;

[0020] Figure 4 This is a schematic diagram showing the installation position of the electromagnet in this utility model;

[0021] Figure 5 This is a schematic cross-sectional view of the internal structure of the chassis of this utility model;

[0022] Figure 6 This is an enlarged schematic diagram of point A of this utility model;

[0023] Figure 7 This is a schematic diagram showing the connection of the various components of this utility model.

[0024] Figure 8 This is a schematic diagram of the Ethernet switching bus principle of this utility model.

[0025] In the diagram: 1. Chassis; 2. Fixing mechanism; 21. Limiting chamber; 22. Locking hole; 23. Locking rod; 231. Locking head; 24. Limiting plate; 25. Strong spring; 26. Electromagnet; 27. Limiting hole; 3. Execution module; 31. Power board; 32. Main control board; 33. Function board; 4. Bus backplane; 5. Display panel; 6. Device panel; 7. Matching magnet; 8. Connecting slot; 9. Panel slot. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely represents some embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0027] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0028] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and "back side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product is conventionally placed during use. These terms are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model.

[0029] It should also be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] This disclosure aims to address the challenges posed by existing power distribution equipment condition monitoring products, which employ various sensor interfaces for electrical quantities, analog quantities, digital quantities, temperature, pressure, concentration, video, and audio. These signal interfaces exhibit diverse sampling frequencies, including DC, low-frequency, high-frequency, and ultra-high-frequency signals. The performance requirements of IED devices vary significantly due to the diverse types of data interfaces and varying data volumes, making single-CPU processing difficult and multi-CPU module data interaction schemes complex. Furthermore, existing functional modules are often bolt-fixed, hindering rapid module replacement. Therefore, this disclosure proposes a comprehensive monitoring IED intelligent electronic device. By establishing a backplane and execution module, it solves the problem of insufficient bandwidth in the internal board-to-board communication bus of conventional devices. Simultaneously, the flexibility of Ethernet data exchange meets the varying performance requirements of different acquisition and interaction methods, addressing the complexity of communication mechanisms. Finally, a high-speed bus backplane is designed based on an Ethernet switching chip, facilitating modular design, flexible functional configuration, and optimized comprehensive monitoring costs for each IED device.

[0031] like Figures 1 to 8 As shown, an intelligent electronic device for comprehensive monitoring of IED includes a chassis 1, a fixing mechanism 2, an execution module 3, a bus backplane 4, a display panel 5, and a device panel 6. The fixing mechanism 2 is installed inside the chassis 1 and is used to quickly fix and disassemble the execution module 3. The execution module 3 is mounted on the fixing mechanism 2 and is used to perform different functions according to different control boards inside it. A sealed bus backplane 4 is provided in front of the execution module 3, the display panel 5 is provided in front of the sealed bus backplane 4, and the device panel 6 is provided in front of the display panel 5. The execution module 3, the bus backplane 4, and the display panel 5 are all connected by wires.

[0032] By setting up filter discs 46 with progressively decreasing mesh sizes, efficient filtration of metallic foreign matter in lithium battery functional additive materials is achieved, improving filtration accuracy. The use of a fixing frame 41, fixing groove 42, fixing ring 43, and a limiting plate 49 ensures the stable fixation of the filter discs 46 and facilitates installation and replacement. The vibration motor 52 of the vibration mechanism 5 drives the fixing frame 41 to vibrate, enhancing the filtration effect, while the sound-absorbing cotton 53 reduces operating noise. Overall, this design improves the filtration efficiency, stability, and ease of maintenance of the filtration device, while optimizing the working environment noise, effectively ensuring the high purity of lithium battery functional additive materials, thereby improving the performance and safety of lithium batteries.

[0033] like Figures 2 to 6As shown, the fixing mechanism 2 includes a limiting chamber 21, a locking hole 22, a locking rod 23, a limiting plate 24, a strong spring 25, an electromagnet 26, and a limiting hole 27. The limiting chambers 21 are arrayed inside the chassis 1 and are used to limit the execution module 3. The limiting chambers 21 are symmetrically provided with locking holes 22 for the locking rod 23 to slide. The locking rod 23 is slidably installed in the locking hole 22 and is used to lock the execution module 3 by sliding within the locking hole 22. One end of the locking rod 23 passes through... The limiting chamber 21 is provided with a limiting plate 24, which is used to limit the locking rod 23. A strong spring 25 is provided between the locking rod 23 and the limiting chamber 21. The strong spring 25 is used to reset the locking rod 23 when it is not compressed. An electromagnet 26 is provided between the outside of the limiting chamber 21 and the limiting plate 24. The electromagnet 26 is used to push the limiting plate 24 to move. The execution module 3 is provided with a limiting hole 27 corresponding to the locking rod 23. The limiting hole 27 is used to cooperate with the locking rod 23 to fix the execution module 3.

[0034] During operation, the operator inserts the execution module 3 into the limiting chamber 21. Under the pressure of the execution module 3, the locking rod 23 retracts. At this time, the execution module 3 continues to move into the limiting chamber 21 until the locking hole 22 aligns with the limiting hole 27. Then, under the action of the strong spring 25, the locking rod 23 extends into the limiting hole 27 for limiting. When it is necessary to remove the execution module 3, the electromagnet 26 is energized to push the limiting plate 24 to move, so that the locking rod 23 can be moved out of the limiting hole 27 and the execution module 3 can be removed.

[0035] The combination of the limiting chamber 21, locking hole 22, locking rod 23, limiting plate 24, strong spring 25, electromagnet 26, and limiting hole 27 enables rapid fixing and disassembly of the execution module 3. When fixing the execution module 3, the elastic reset action of the strong spring 25 allows the locking rod 23 to automatically extend into the limiting hole 27, completing the rapid positioning and locking of the execution module 3. The operation is simple and the fixation is reliable. During disassembly, energizing the electromagnet 26 pushes the limiting plate 24, causing the locking rod 23 to move out of the limiting hole 27, allowing the execution module 3 to be easily removed. The disassembly process requires no complex tools or manual operation, greatly improving the efficiency of maintenance and replacement of the execution module 3, reducing equipment maintenance costs, and ensuring the stability and reliability of the device. It is especially suitable for occasions requiring frequent replacement or maintenance of the execution module 3.

[0036] like Figure 6As shown, the other end of the locking rod 23 is provided with an arc-shaped locking head 231. The arc-shaped locking head 231 can effectively reduce the contact stress between the locking rod 23 and the limiting hole 27, avoid local wear or damage caused by sharp edges, thereby extending the service life of the locking rod 23 and the limiting hole 27 and improving the durability of the device. Secondly, the arc-shaped structure can play a good guiding role during the insertion of the execution module 3 into the limiting chamber 21, so that the locking rod 23 can slide into the limiting hole 27 more smoothly, reducing the risk of jamming caused by inaccurate alignment, and further improving the installation efficiency and reliability of the execution module 3.

[0037] like Figure 6 As shown, a mating magnet 7 is disposed below the limiting disk 24. The mating magnet 7 has opposite magnetic poles to the electromagnet 26 when energized. The presence of a mating magnet 7 with opposite magnetic poles to the electromagnet 26 below the limiting disk 24 significantly improves the reliability and operational stability of the locking mechanism. When the electromagnet 26 is energized, due to the principle of magnetic repulsion, the mating magnet 7 will be repelled by the electromagnet 26, thereby pushing the limiting disk 24 to move rapidly, causing the locking rod 23 to quickly move out of the limiting hole 27, thus achieving rapid unlocking of the execution module 3.

[0038] like Figures 2 to 7 As shown, the execution module 3 includes a power supply board 31, a main control board 32, and function boards 33. All three boards are mounted inside the chassis 1 via a fixing mechanism 2. Eight function boards 33 are configured to detect different signals. The power supply board 31 receives external AC 220V or DC 110V power and converts it to DC 5V and ±15V power to power the various components of the device. The main control board 32 controls the input and output of the device, including user interaction and communication transmission. Data collected from each function board 33 is collected and processed uniformly via a high-speed Ethernet bus on the backplane. The function boards 33 are the device's acquisition and control execution module 3. Each function board 33 has a separate CPU capable of processing specific data acquisition functions, including low-speed analog signals, power frequency AC signals, switch signals, and high-speed acoustic signals, infrared signals, and ultra-high frequency partial discharge signals. After being preprocessed by the CPU, the sampled data is sent to the main control board 32 for processing via the high-speed Ethernet bus on the backplane. The flexibility of exchanging data via Ethernet meets the different performance requirements of IED devices for different acquisition and interaction, as well as the problem of complex communication mechanisms.

[0039] Function boards 33 are as follows:

[0040] Conventional signal sampling function board 33: transformer oil surface temperature Pt100 signal, oil level signal, gas relay switching signal, transformer core grounding current monitoring, etc.

[0041] Power frequency AC signal sampling function board 33: Three-phase current and voltage signals on the high and low voltage sides of the transformer;

[0042] Gas concentration signal sampling function board 33: Transformer DGA monitoring, collecting seven gas concentrations and micro-water signals;

[0043] Optical signal sampling function board 33: 8-channel fiber optic temperature measurement for transformer windings;

[0044] Vibration signal sampling function board 33: Transformer vibration monitoring;

[0045] Video signal sampling function board 33: Transformer infrared and ultraviolet video monitoring;

[0046] Voiceprint signal sampling function board 33: Transformer voiceprint monitoring;

[0047] Partial discharge signal sampling function board 33: Transformer UHF partial discharge monitoring;

[0048] The time slice allocation for each functional module on the bus communication is shown in Table 1:

[0049] ;

[0050] Table 1. Time Slot Allocation for Each Channel

[0051] Each functional board uploads data according to the time slot allocated by the channel number within a total time of 1 second, ensuring that data does not conflict and that data can be uploaded effectively, thus guaranteeing communication quality and speed.

[0052] like Figure 7 As shown, the power board 31, the main control board 32 and the function board 33 are all provided with a connecting slot 8 at one end. The bus backplane 4 is provided with a board slot 9 corresponding to the connecting slot 8. Ten board slots 9 are designed on the bus backplane 4, and the power board 31, the main control board 32 and the function board 33 can be inserted through the connecting slot 8.

[0053] like Figure 8 As shown, the bus backplane 4 uses a 9-port 100M Ethernet switching chip to support data interaction and synchronization between the main control board 32 and each functional board 33. The bus backplane 4 uses a domestic Ethernet switching chip to realize a high-speed serial bus based on the switching chip. It not only has strong anti-interference ability, but also high Ethernet communication efficiency, simple and universal program interface, and facilitates application layer data exchange and synchronization.

[0054] To ensure timely and smooth data transmission from each functional board 33 to the main control board 32, the Ethernet upload channel between the switching chip and the main control board 32 uses gigabit bandwidth, while the eight channels connected to the switching chip use 10 / 100M bandwidth communication. To avoid conflicts when different functional boards 33 upload data, a time slot is reserved for each functional board 33. Within a total time of 1 second, each functional board 33 uploads data on time according to the time slot allocated by the channel number, ensuring that data transmission does not conflict, data can be effectively uploaded, and communication quality and speed are guaranteed.

[0055] The overall working process is as follows: the operator inserts the execution module 3 into the limiting chamber 21. Under the pressure of the execution module 3, the locking rod 23 retracts. At this time, the execution module 3 continues to move into the limiting chamber 21 until the locking hole 22 aligns with the limiting hole 27. Then, under the action of the strong spring 25, the locking rod 23 extends into the limiting hole 27 for limiting. After the execution module 3 is installed, it begins to perform data acquisition, including low-speed analog signals, power frequency AC signals, switch signals, and high-speed acoustic signals, infrared signals, and ultra-high frequency partial discharge signals. The sampled data is preprocessed by the CPU and then sent to the main control board 32 for processing via the high-speed Ethernet bus on the backplane 4. The processing results are then displayed on the display panel 5.

[0056] When it is necessary to remove the execution module 3, simply energize the electromagnet 26 to push the limit plate 24 to move, so that the locking rod 23 can be moved out of the limit hole 27 to remove the execution module 3.

[0057] Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An integrated monitoring IED intelligent electronic device, characterized by, The device includes a chassis (1), a fixing mechanism (2), an execution module (3), a bus backplate (4), a display panel (5), and a device panel (6). The chassis (1) is equipped with a fixing mechanism (2), which is used to quickly fix and disassemble the execution module (3). The execution module (3) is mounted on the fixing mechanism (2). The execution module (3) is used to perform different functions according to different control boards inside it. A sealed bus backplate (4) is provided in front of the execution module (3). A display panel (5) is provided in front of the sealed bus backplate (4). A device panel (6) is provided in front of the display panel (5). The execution module (3), the bus backplate (4), and the display panel (5) are all connected by wires.

2. The integrated monitoring IED (Intelligent Electronic Device) according to claim 1, characterized in that: The fixing mechanism (2) includes a limiting chamber (21), a locking hole (22), a locking rod (23), a limiting plate (24), a strong spring (25), an electromagnet (26), and a limiting hole (27). The limiting chambers (21) are arrayed inside the chassis (1). The limiting chambers (21) are symmetrically provided with locking holes (22). The locking rod (23) is slidably installed in the locking hole (22). One end of the locking rod (23) passes through the limiting chamber (21) and is provided with a limiting plate (24). A strong spring (25) is provided between the locking rod (23) and the limiting chamber (21). An electromagnet (26) is provided between the outside of the limiting chamber (21) and the limiting plate (24). The execution module (3) is provided with a limiting hole (27) corresponding to the locking rod (23).

3. The integrated monitoring IED (Intelligent Electronic Device) according to claim 2, characterized in that: The other end of the locking rod (23) is provided with an arc-shaped locking head (231).

4. The integrated monitoring IED (Intelligent Electronic Device) according to claim 3, characterized in that: A matching magnet (7) is provided below the limiting disk (24), and the magnetic poles of the matching magnet (7) are opposite to those of the electromagnet (26) after it is energized.

5. The integrated monitoring IED intelligent electronic device of claim 4, wherein: The execution module (3) includes a power board (31), a main control board (32) and a function board (33). The power board (31), the main control board (32) and the function board (33) are all installed inside the chassis (1) by a fixing mechanism (2). The function board (33) is provided with 8 to detect different signals.

6. The integrated monitoring IED intelligent electronic device of claim 5, wherein: The power board (31), main control board (32) and function board (33) are each provided with a connecting slot (8) at one end, and the bus backplate (4) is provided with a board slot (9) corresponding to the connecting slot (8).

7. The integrated monitoring IED intelligent electronic device of claim 6, wherein: The bus backplane (4) uses a 9-port 100M Ethernet switching chip to support data interaction and synchronization between the main control board (32) and each function board (33).

Images