Intelligent high-frequency current sensor with self-diagnosis and wireless transmission functions and packaging structure thereof

Abstract

The invention discloses an intelligent high-frequency current sensor with self-diagnosis and wireless transmission functions and a packaging structure thereof, and relates to the technical field of intelligent high-frequency current sensors, the intelligent high-frequency current sensor comprises a first covering plate, the first covering plate is arranged on one side of a sensor body, and a second covering plate is arranged on the other side of the sensor body; the first covering plate and the second covering plate are arranged on the top of the sensor body and used for wrapping and protecting the two sides of the top of the sensor body, insulating layers are arranged in the first covering plate and the second covering plate, compression-resistant layers are arranged in the first covering plate and the second covering plate and used for enhancing the compression resistance of the first covering plate and the second covering plate, and multiple magnet strips are arranged on one side of the second covering plate. The plurality of magnet strips are in magnetic connection with the magnet plate, are used for enhancing the stability after the first covering plate and the second covering plate are attached, have compressive strength and yield strength at the same time, and can keep the internal structure not deformed and avoid coil breakage or magnetic core position deviation when the sensor body is embedded into a cable groove or extruded by a heavy object.

Description

Technical Field

[0001] This invention relates to the field of intelligent high-frequency current sensor technology, specifically to an intelligent high-frequency current sensor with self-diagnosis and wireless transmission functions and its packaging structure. Background Technology

[0002] High-frequency current sensors, as the core sensing unit for online monitoring of partial discharge, play a crucial role in the insulation status of power equipment. With the deepening of the construction of smart grids and the Internet of Things for power, the requirements for the intelligence level of sensors are constantly increasing. Intelligent high-frequency current sensors with self-diagnosis and wireless transmission functions have become a key direction for industry development. High-frequency current sensors are mainly used to capture high-frequency pulse current signals generated when partial discharge occurs in power equipment. Currently, some sensors use Hall effect sensors to integrate basic diagnostic functions, which can detect broken wires. External hardware filtering is often used to overcome electromagnetic interference. Self-powered technology is adopted to realize passive wireless measurement. By exciting high-frequency electromagnetic waves through displacement current, long-distance wireless signal transmission can be achieved without external power supply and traditional antenna.

[0003] High-frequency current sensors need to operate in the strong electromagnetic environment of substations. The field is subject to various interference sources, including power frequency electromagnetic fields, transient electromagnetic pulses generated by switching operations, and wireless communication signals. The sensor housing lacks a dedicated protective structure and an effective electromagnetic shielding layer, making it easy for external electromagnetic interference to penetrate the sensor and intrude into the signal acquisition circuitry. It also faces the risk of dust accumulation and moisture intrusion. The lack of a sealed and protective structure allows external dust to directly adhere to the internal circuit board and magnetic core surface, affecting the transmission characteristics of high-frequency signals. Moisture intrusion can lead to a decrease in insulation performance. The unprotected housing has poor impact resistance, easily causing the magnetic core to break, directly affecting the sensor's lifespan and measurement stability. Therefore, an intelligent high-frequency current sensor with self-diagnosis and wireless transmission functions, along with its packaging structure, was designed. Summary of the Invention

[0004] The purpose of this invention is to provide an intelligent high-frequency current sensor and its packaging structure with self-diagnosis and wireless transmission functions, so as to solve the problems mentioned in the background art, such as the ease with which external electromagnetic interference can enter the sensor and invade the signal acquisition circuit, as well as the risks of dust accumulation and moisture intrusion. The outer shell lacks a sealing and protective structure, and external dust can directly adhere to the internal circuit board and magnetic core surface of the sensor, affecting the transmission characteristics of high-frequency signals. Moisture intrusion may lead to a decrease in insulation performance.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an intelligent high-frequency current sensor with self-diagnosis and wireless transmission functions, comprising; Sensor body; A first cover plate is provided on one side of the sensor body, and a second cover plate is provided on the other side of the sensor body. The first cover plate and the second cover plate are provided with an insulating layer inside and a pressure-resistant layer inside to enhance the pressure resistance of the first cover plate and the second cover plate. The second cover plate has multiple magnetic strips on one side, and the first cover plate has a magnetic plate on one side. The multiple magnetic strips are magnetically connected to the magnetic plate to enhance the stability of the first cover plate after it is bonded to the second cover plate.

[0006] Preferably, two positioning frames are provided on both sides of the sensor body, and two limiting bolts are provided on the top of each of the four positioning frames for installing the sensor body and the application device. A wiring conduit is provided on the top of the sensor body.

[0007] Preferably, a rotating component is provided on one side of the sensor body, and a circular gear is sleeved on one end of the rotating component. The rotation of the rotating component is used to drive the circular gear to rotate in place. Two stabilizing bars are provided inside the sensor body, and a stabilizing block is sleeved on one end of each of the two stabilizing bars.

[0008] Preferably, both of the stabilizing strips are fixedly disposed inside the sensor body, and the two stabilizing blocks are movably sleeved with one end of the two stabilizing strips respectively. Each of the two stabilizing blocks has an auxiliary plate on one side, and each of the two auxiliary plates has a straight toothed rack on one side.

[0009] Preferably, one side of each of the two straight racks is fixedly connected to one side of each of the two auxiliary plates, and an extension plate is fixedly installed on the other side of each of the two auxiliary plates, with one side of one of the extension plates fixed to one side of the first cover plate.

[0010] Preferably, one side of the other extension plate is fixed to one side of the second cover plate, and the two straight racks are respectively meshed with a round gear. The round gear drives the two straight racks to move left and right to adjust the area of ​​the first cover plate and the second cover plate.

[0011] Preferably, both the first and second cover plates have a high-temperature resistant layer inside, and both the first and second cover plates have a U-shaped anti-compression frame fixedly installed at their bottoms. A vertical abutment plate is provided on one side of the sensor body.

[0012] Preferably, a plurality of first magnetic rollers are provided on one side of the vertical abutment plate, and a plurality of second magnetic rollers are provided on one side of both the first and second cover plates, and the plurality of second magnetic rollers are arranged at equal intervals.

[0013] Preferably, the opening diameter of each of the plurality of second magnetic rollers is smaller than the opening diameter of each of the plurality of first magnetic rollers, and the plurality of first magnetic rollers are magnetically connected to the plurality of second magnetic rollers respectively, for automatic flush movement of the first cover plate and the second cover plate, ensuring the accuracy of the coverage of the sensor body by both.

[0014] A packaging structure for an intelligent high-frequency current sensor with self-diagnosis and wireless transmission functions, comprising an intelligent high-frequency current sensor.

[0015] Compared with the prior art, the beneficial effects of the present invention are: In this invention, a circular gear, a straight rack, an extension plate, a first cover plate, a second cover plate, an insulating layer, and a pressure-resistant layer are incorporated. Rotating the rotating component clockwise causes the circular gear, which is fitted with it, to rotate synchronously. This, in turn, causes the two meshing straight racks to move relative to each other. With the extension plate connecting them, the first and second cover plates move relative to each other, bringing them closer together. As the first and second cover plates approach each other, they wrap and cover both sides of the top of the sensor body, improving the pressure resistance of the sensor body's outer surface. The insulating layer... Made of alumina ceramic material, it has extremely high breakdown field strength, ensuring that the sensor body will not be broken down when under high voltage or transient overvoltage, thus protecting equipment and personnel safety. The pressure-resistant layer is made of carbon fiber reinforced composite material, with tensile strength and impact toughness far exceeding that of ordinary plastics. It can effectively resist accidental drops during installation, tool impacts, and impacts from flying stones on site, preventing the magnetic core from breaking. It also has compressive strength and yield strength, so that when the sensor body is buried in cable trenches or subjected to heavy objects, it can maintain the internal structure without deformation, avoiding coil breakage or magnetic core displacement.

[0016] In this invention, by setting a high-temperature resistant layer, stabilizing strips, stabilizing blocks, magnetic strips, magnetic plates, first magnetic rollers, and second magnetic rollers, when the first and second cover plates approach each other, the magnetic strips also gradually approach the magnetic plates. Because the magnetic strips and magnetic plates are magnetically connected, as they approach, the first and second cover plates adhere more firmly and achieve a better sealing effect. Rotating the rotating component counterclockwise drives the circular gear to rotate counterclockwise, which in turn causes the two straight racks to move towards each other. With the extension plate connecting them, the first and second cover plates move towards each other and move away from each other, thus enabling the sensor body to be repaired and installed. When the first and second cover plates move, the surfaces of the multiple first magnetic rollers are positioned on the second magnetic rollers. The surfaces move back and forth, and the two are magnetically attracted to each other, which allows the first cover plate and the second cover plate to be in a flush state when they move, ensuring the stability when the first cover plate and the second cover plate are attached. The vertical abutment plate is located on the side of the first cover plate and the second cover plate, mainly supporting the side of the multiple first magnetic rollers, so that the first magnetic rollers and the second magnetic rollers are close together. The multiple second magnetic rollers are distributed at equal intervals on the side of the first cover plate and the second cover plate. The high temperature resistant layer is made of high temperature resistant coating and filler material, which can form a heat insulation layer. When the sensor body is installed near the heat-generating equipment, the heat insulation layer can block external heat radiation, so that the internal electronic components can work in a suitable temperature range, while reducing the magnetic permeability drift of the magnetic core caused by temperature rise. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of an intelligent high-frequency current sensor with self-diagnosis and wireless transmission functions according to the present invention. Figure 2 This invention relates to an intelligent high-frequency current sensor with self-diagnosis and wireless transmission functions. Figure 1 Enlarged view of point A in the middle; Figure 3 This is a schematic diagram of a partial side view of the structure of an intelligent high-frequency current sensor with self-diagnosis and wireless transmission functions according to the present invention. Figure 4 This is a top view schematic diagram of the structure of an intelligent high-frequency current sensor with self-diagnosis and wireless transmission functions according to the present invention. Figure 5 This is a partial upward-view structural diagram of an intelligent high-frequency current sensor with self-diagnosis and wireless transmission functions according to the present invention. Figure 6 This is a partial side view structural diagram of an intelligent high-frequency current sensor with self-diagnosis and wireless transmission functions according to the present invention. Figure 7 This invention relates to an intelligent high-frequency current sensor with self-diagnosis and wireless transmission functions. Figure 6 Enlarged view of point B in the middle.

[0018] In the diagram: 100, sensor body; 101, positioning frame; 102, limit bolt; 103, wiring conduit; 201, rotating component; 202, circular gear; 203, stabilizing strip; 204, stabilizing block; 205, auxiliary plate; 206, straight rack; 207, extension plate; 208, first cover plate; 209, second cover plate; 210, insulating layer; 211, pressure-resistant layer; 212, high-temperature resistant layer; 301, magnet strip; 302, magnet plate; 303, U-shaped pressure-resistant frame; 304, vertical abutment plate; 305, first magnet roller; 306, second magnet roller. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] To address the shortcomings of existing intelligent high-frequency current sensors, such as the lack of an effective electromagnetic shielding layer during operation, which allows external electromagnetic interference to easily penetrate the sensor and intrude into the signal acquisition circuit, as well as the risks of dust accumulation and moisture intrusion, and the lack of a sealed and protective casing, this invention provides an intelligent high-frequency current sensor with self-diagnostic and wireless transmission functions. (Refer to...) Figure 1 and Figure 2 As shown: including: Sensor body 100; A first cover plate 208 is disposed on one side of the sensor body 100, and a second cover plate 209 is disposed on the other side of the sensor body 100. The first cover plate 208 and the second cover plate 209 are both provided with an insulating layer 210 and a pressure-resistant layer 211 to enhance the pressure resistance of the first cover plate 208 and the second cover plate 209. The second cover plate 209 has a plurality of magnetic strips 301 on one side, and the first cover plate 208 has a magnetic plate 302 on one side. The plurality of magnetic strips 301 are magnetically connected to the magnetic plate 302 to enhance the stability of the first cover plate 208 and the second cover plate 209 after they are attached.

[0021] Preferred, according to Figure 3As shown, two positioning brackets 101 are provided on both sides of the sensor body 100. Two limiting bolts 102 are provided on the top of each of the four positioning brackets 101 for mounting the sensor body 100 to the application device. A wiring conduit 103 is provided on the top of the sensor body 100. A rotating component 201 is provided on one side of the sensor body 100. A circular gear 202 is fitted onto one end of the rotating component 201. The rotation of the rotating component 201 drives the circular gear 202 to rotate in place. Two stabilizing bars 203 are provided inside the sensor body 100. Stabilizing blocks 204 are fitted onto one end of each of the two stabilizing bars 203. Both stabilizing bars 203 are fixedly installed inside the sensor body 100. The two stabilizing blocks 204 are movably fitted onto one end of each of the two stabilizing bars 203. Each of the two stabilizing blocks 204 has a [missing information - likely a typo or missing word]. Auxiliary plates 205, each with a straight toothed rack 206 on one side, are connected by extension plates 207. The first cover plate 208 and the second cover plate 209 move relative to each other and approach each other. As the first cover plate 208 and the second cover plate 209 approach each other, they can wrap and cover the two sides of the top of the sensor body 100, improving the compressive strength of the outer surface of the sensor body 100. The insulating layer 210 is made of alumina ceramic material, which has extremely high breakdown field strength, ensuring that the sensor body 100 is not broken down on the high voltage side or when a transient overvoltage occurs, thus ensuring the safety of equipment and personnel. The compressive strength layer 211 is made of carbon fiber reinforced composite material, which has tensile strength and impact toughness far higher than ordinary plastics, effectively resisting accidental drops during installation, tool bumps, and impacts from flying stones on site, preventing the magnetic core from breaking.

[0022] Preferred, according to Figure 4 and Figure 5 As shown, one side of each of the two straight racks 206 is fixedly connected to one side of each of the two auxiliary plates 205. An extension plate 207 is fixedly installed on the other side of each of the two auxiliary plates 205. One side of one extension plate 207 is fixed to one side of the first cover plate 208, and one side of the other extension plate 207 is fixed to one side of the second cover plate 209. The two straight racks 206 are meshed with a circular gear 202, which drives the two straight racks 206 to move left and right to adjust the first cover plate 209. The area of ​​the extended plate 208 and the second cover plate 209, the interior of the first cover plate 208 and the second cover plate 209 are provided with a high temperature resistant layer 212, the bottom of the first cover plate 208 and the second cover plate 209 are fixedly installed with a U-shaped anti-compression frame 303, and a vertical abutment plate 304 is provided on one side of the sensor body 100. It has both compressive strength and yield strength. When the sensor body 100 is buried in the cable trench or squeezed by heavy objects, it can keep the internal structure from deforming and avoid coil breakage or magnetic core position displacement.

[0023] Preferred, according to Figure 6and Figure 7 As shown, a plurality of first magnetic rollers 305 are provided on one side of the vertical abutment plate 304, and a plurality of second magnetic rollers 306 are provided on one side of both the first cover plate 208 and the second cover plate 209. The plurality of second magnetic rollers 306 are arranged at equal intervals, and the opening diameter of the plurality of second magnetic rollers 306 is smaller than the opening diameter of the plurality of first magnetic rollers 305. The plurality of first magnetic rollers 305 are magnetically connected to the plurality of second magnetic rollers 306, which is used for the automatic flush movement of the first cover plate 208 and the second cover plate 209, ensuring that both are in contact with the sensor. The precision of the outer covering of the device body 100 is ensured. When the first covering plate 208 and the second covering plate 209 approach each other, the magnetic strip 301 also gradually approaches the magnetic plate 302. Since the magnetic strip 301 and the magnetic plate 302 are magnetically connected, as they approach each other, the first covering plate 208 and the second covering plate 209 are more firmly attracted and the sealing effect is better. Rotating the rotating part 201 counterclockwise drives the circular gear 202 to rotate counterclockwise, which in turn drives the two straight racks 206 to move towards each other. With the connection of the extension plate 207, the first covering plate 208 and the second covering plate 209... The two cover plates 209 move towards each other, moving away from each other, thus enabling maintenance and installation of the sensor body 100. When the first cover plate 208 and the second cover plate 209 move, the surfaces of the multiple first magnetic rollers 305 move back and forth on the surface of the second magnetic roller 306, and the two are magnetically attracted to each other, ensuring that the first cover plate 208 and the second cover plate 209 are flush during movement, guaranteeing stability when the first cover plate 208 and the second cover plate 209 are in contact. The vertical abutment plate 304 is located between the first cover plate 208 and the second cover plate 209. The side of 9 mainly supports the sides of multiple first magnetic rollers 305, so that the first magnetic rollers 305 and the second magnetic rollers 306 are close together. Multiple second magnetic rollers 306 are distributed at equal intervals on the sides of the first cover plate 208 and the second cover plate 209. The high temperature resistant layer 212 is made of high temperature resistant coating and filler material, which can form a heat insulation layer. When the sensor body 100 is installed near the heat-generating equipment, the heat insulation layer can block external heat radiation, so that the internal electronic devices can work in a suitable temperature range, and at the same time reduce the magnetic permeability drift of the magnetic core caused by temperature rise.

[0024] Working Principle: High-frequency current sensors, as the core sensing unit for online partial discharge monitoring, play a crucial role in the insulation status of power equipment. With the deepening of smart grid and power Internet of Things construction, the requirements for the intelligence level of sensors are constantly increasing. Intelligent high-frequency current sensors with self-diagnosis and wireless transmission functions have become a key direction for industry development. High-frequency current sensors are mainly used to capture high-frequency pulse current signals generated when partial discharge occurs in power equipment. Currently, some sensors using Hall effect integrate basic diagnostic functions and can detect open circuits. External hardware filtering is also frequently used to overcome electromagnetic interference. Self-powered technology is employed to achieve passive wireless measurement, using displacement current to excite high-frequency electromagnetic waves. This high-frequency current sensor enables long-distance wireless signal transmission without the need for an external power supply or traditional antenna. However, it operates in the strong electromagnetic environment of a substation, where various interference sources exist, including power frequency electromagnetic fields, transient electromagnetic pulses from switching operations, and wireless communication signals. The sensor housing lacks a dedicated protective structure and an effective electromagnetic shielding layer, making it highly susceptible to external electromagnetic interference that can easily penetrate the sensor and intrude into the signal acquisition circuitry. Furthermore, it faces the risk of dust accumulation and moisture intrusion. The lack of a sealed and protective structure allows external dust to directly adhere to the internal circuit board and magnetic core surface, affecting the high-frequency signal transmission characteristics. Moisture intrusion can lead to decreased insulation performance. The unprotected housing also has poor impact resistance, making the magnetic core prone to breakage. This directly affects the lifespan and measurement stability of the sensor. Therefore, an intelligent high-frequency current sensor with self-diagnosis and wireless transmission functions and its packaging structure were designed. The structure includes a circular gear 202, a straight rack 206, an extension plate 207, a first cover plate 208, a second cover plate 209, an insulating layer 210, and a pressure-resistant layer 211. Rotating the rotating component 201 clockwise causes the circular gear 202 to rotate synchronously, which in turn causes the two meshing straight racks 206 to move relative to each other. With the extension plate 207 connecting them, the first cover plate 208 and the second cover plate 209 move relative to each other, bringing them closer together. As the first cover plate 208 and the second cover plate 209 approach each other, the sensor's lifespan and measurement stability can be directly measured. The top two sides of the sensor body 100 are wrapped and covered, improving the compressive strength of the outer surface of the sensor body 100. The insulating layer 210 is made of alumina ceramic material, which has extremely high breakdown field strength, ensuring that the sensor body 100 is not broken down under high voltage or transient overvoltage, thus protecting equipment and personnel safety. The compressive strength layer 211 is made of carbon fiber reinforced composite material, with tensile strength and impact toughness far exceeding that of ordinary plastics. It can effectively resist accidental drops during installation, tool impacts, and impacts from flying stones on site, preventing the magnetic core from breaking. It also has compressive strength and yield strength, so that when the sensor body 100 is buried in a cable trench or subjected to heavy objects, it can maintain the internal structure without deformation, avoiding coil breakage or magnetic core displacement.By incorporating a high-temperature resistant layer 212, a stabilizing strip 203, a stabilizing block 204, a magnetic strip 301, a magnetic plate 302, a first magnetic roller 305, and a second magnetic roller 306, when the first cover plate 208 and the second cover plate 209 approach each other, the magnetic strip 301 also gradually approaches the magnetic plate 302. Because the magnetic strip 301 and the magnetic plate 302 are magnetically connected, as they approach, the first cover plate 208 and the second cover plate 209 adhere more firmly and achieve a better sealing effect. Rotating the rotating component 201 counterclockwise drives the circular gear 202 to rotate counterclockwise, which in turn causes the two straight racks 206 to move towards each other. With the extension plate 207 connecting them, the first cover plate 208 and the second cover plate 209 move towards each other and move away from each other, thus enabling maintenance and installation of the sensor body 100. When the first cover plate 208 and the second cover plate 209 move, the multiple first magnetic rollers 305 and 306... The surface of the first cover plate 208 moves back and forth on the surface of the second magnetic roller 306, and the two are magnetically attracted to each other, ensuring that the first cover plate 208 and the second cover plate 209 are flush when they move, thus ensuring the stability of the first cover plate 208 and the second cover plate 209 when they are in contact. The vertical abutment plate 304 is located on the side of the first cover plate 208 and the second cover plate 209, mainly supporting the sides of the multiple first magnetic rollers 305, so that the first magnetic rollers 305 and the second magnetic rollers 306 are close together. The multiple second magnetic rollers 306 are distributed at equal intervals on the sides of the first cover plate 208 and the second cover plate 209. The high-temperature resistant layer 212 is made of high-temperature resistant coating and filler material, which can form a heat insulation layer. When the sensor body 100 is installed near a heat-generating device, the heat insulation layer can block external heat radiation, so that the internal electronic components operate in a suitable temperature range, and at the same time reduce the magnetic permeability drift of the magnetic core caused by temperature rise.

[0025] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A smart high-frequency current sensor with self-diagnosis and wireless transmission functions, characterized in that, include: Sensor body (100); A first cover plate (208) is disposed on one side of the sensor body (100), and a second cover plate (209) is disposed on the other side of the sensor body (100) for wrapping and protecting the two sides of the top of the sensor body (100). An insulating layer (210) is disposed inside the first cover plate (208) and the second cover plate (209), and a pressure-resistant layer (211) is disposed inside both to enhance the pressure resistance of the first cover plate (208) and the second cover plate (209). The second cover plate (209) is provided with a plurality of magnet strips (301) on one side, and the first cover plate (208) is provided with a magnet plate (302) on one side. The plurality of magnet strips (301) are magnetically connected to the magnet plate (302) to enhance the stability of the first cover plate (208) and the second cover plate (209) after they are attached.

2. The intelligent high-frequency current sensor with self-diagnosis and wireless transmission functions according to claim 1, characterized in that: Two positioning frames (101) are provided on both sides of the sensor body (100), and two limiting bolts (102) are provided on the top of the four positioning frames (101) for installing the sensor body (100) and the application device. A wiring pipe (103) is provided on the top of the sensor body (100).

3. The intelligent high-frequency current sensor with self-diagnosis and wireless transmission functions according to claim 2, characterized in that: A rotating component (201) is provided on one side of the sensor body (100). A circular gear (202) is sleeved on one end of the rotating component (201). The rotation of the rotating component (201) is used to drive the circular gear (202) to rotate in place. Two stabilizing bars (203) are provided inside the sensor body (100). A stabilizing block (204) is sleeved on one end of each of the two stabilizing bars (203).

4. The intelligent high-frequency current sensor with self-diagnosis and wireless transmission functions according to claim 3, characterized in that: Both of the two stabilizing bars (203) are fixedly installed inside the sensor body (100). The two stabilizing blocks (204) are movably sleeved with one end of the two stabilizing bars (203). An auxiliary plate (205) is provided on one side of each of the two stabilizing blocks (204), and a straight toothed rack (206) is provided on one side of each of the two auxiliary plates (205).

5. The intelligent high-frequency current sensor with self-diagnosis and wireless transmission functions according to claim 4, characterized in that: One side of each of the two straight racks (206) is fixedly connected to one side of each of the two auxiliary plates (205), and an extension plate (207) is fixedly installed on the other side of each of the two auxiliary plates (205). One side of one of the extension plates (207) is fixed to one side of the first cover plate (208).

6. The intelligent high-frequency current sensor with self-diagnosis and wireless transmission functions according to claim 5, characterized in that: One side of the other extension plate (207) is fixed to one side of the second cover plate (209). The two straight racks (206) are respectively meshed with the round gears (202). The round gears (202) drive the two straight racks (206) to move left and right to adjust the area of ​​the first cover plate (208) and the second cover plate (209).

7. The intelligent high-frequency current sensor with self-diagnosis and wireless transmission functions according to claim 6, characterized in that: The first cover plate (208) and the second cover plate (209) are both provided with a high temperature resistant layer (212). The bottom of the first cover plate (208) and the second cover plate (209) are both fixedly installed with a U-shaped anti-compression frame (303). A vertical abutment plate (304) is provided on one side of the sensor body (100).

8. The intelligent high-frequency current sensor with self-diagnosis and wireless transmission functions according to claim 7, characterized in that: The vertical abutment plate (304) is provided with a plurality of first magnetic rollers (305) on one side, and the first cover plate (208) and the second cover plate (209) are each provided with a plurality of second magnetic rollers (306) on one side, and the plurality of second magnetic rollers (306) are arranged at equal intervals.

9. The intelligent high-frequency current sensor with self-diagnosis and wireless transmission functions according to claim 8, characterized in that: The opening diameter of each of the multiple second magnetic rollers (306) is smaller than the opening diameter of each of the multiple first magnetic rollers (305). The multiple first magnetic rollers (305) are magnetically connected to the multiple second magnetic rollers (306) respectively, for the automatic flush movement of the first cover plate (208) and the second cover plate (209), ensuring the accuracy of the two covering the periphery of the sensor body (100).

10. A packaging structure for an intelligent high-frequency current sensor with self-diagnosis and wireless transmission functions, characterized in that: Including the intelligent high-frequency current sensor according to any one of claims 1-9.

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