Power cabinet with electric leakage monitoring structure

Abstract

The application discloses a power cabinet with a leakage monitoring structure and relates to the technical field of power cabinets.The power cabinet with the leakage monitoring structure comprises an equipment frame, a supporting plate is fixedly arranged in the equipment frame, an electric push rod is fixedly arranged on one side away from an output end of the equipment frame, and a limiting device comprises a square block, a circular plate, a wiring head, an electric wire, a fixing plate, a limiting block, an L-shaped plate, a square block and a wiring frame.The square block is slidably arranged above the supporting plate, the wiring head is fixedly penetrated through inner and outer walls of the square block, and the power cabinet with the leakage monitoring structure can be detected only after being limited, so that the power cabinet can be overhauled or operated in a safe state, the safety of operators is maximally ensured, and the internal electrical equipment can be better protected and the risk of equipment damage caused by leakage can be reduced.

Description

A power cabinet with leakage current monitoring structure Technical Field

[0001] This invention relates to the field of power cabinet technology, specifically to a power cabinet with a leakage current monitoring structure. Background Technology

[0002] A power cabinet with leakage current monitoring is a comprehensive device used for the protection, control, and management of power equipment. It is commonly used in power distribution systems, substations, industrial automation, and power monitoring. This type of power cabinet with leakage current monitoring not only improves the operational safety and stability of the power system but also effectively reduces the risk of accidents, making it an important component of modern power equipment protection.

[0003] Patent publication number CN221080712U relates to the field of power cabinet technology, and particularly to a power cabinet with a leakage current monitoring structure. The cabinet includes a cabinet body, a warning light fixedly installed on one side of the cabinet body, a support plate fixedly installed on one side inside the cabinet body, an insulating box fixedly installed on the top of the support plate, a pressure switch fixedly installed on the top of the insulating box, three sets of racks sequentially installed inside the insulating box, a leakage current protector installed at one end of each rack via a limit bolt, a movable handle movably installed at one end of the leakage current protector, and a smart ammeter fixedly installed on one side of the top inside the insulating box. This patent, through the leakage current protector, movable handle, and pressure switch, achieves leakage current protection for the circuit after the output terminal of the leakage current protector inside the cabinet, improving the safety performance of the device. The combined effect of the smart ammeter and warning light can detect the current within the cabinet itself, preventing injury to maintenance personnel and increasing the safety performance of the device.

[0004] The aforementioned patents utilize a leakage current protector, a movable handle, and a pressure switch to achieve leakage protection for the circuit after the output terminal of the leakage current protector inside the cabinet, improving the safety performance of the device. They also enable detection of the cabinet's own current, preventing injury to maintenance personnel and enhancing overall safety. However, the aforementioned patents may not allow for limiting the device before detection, potentially leading to maintenance in an unsafe state. Furthermore, the limitation may not be released promptly in case of leakage, resulting in equipment damage. Therefore, a power cabinet with a leakage current monitoring structure is designed to limit the device's movement. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a power cabinet with a leakage current monitoring structure, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a power cabinet with a leakage current monitoring structure, comprising a device frame, a support plate fixedly installed inside the device frame, an electric push rod fixedly installed inside the device frame on the side away from the output end, a device body fixedly installed inside the device frame, and a limiting device; wherein, the limiting device comprises a square block, a circular plate, a connector, a wire, a fixing plate, a limiting block, an L-shaped plate, a square block, and a connector frame; the square block is slidably mounted above the support plate; the circular plate is fixedly mounted on the circumferential surface of the electric push rod; the connector is fixedly installed through the inner and outer walls of the square block; and the wire is fixedly installed at the end of the connector away from the device body. The fixed plate is fixedly installed at one end of the square block near the electric push rod, and the limiting block is slidably installed at one end of the square block near the electric push rod. A limiting groove is opened on the surface of the square block, and the L-shaped plate is slidably installed inside the limiting groove. The square block is fixedly installed at one end of the round plate near the electric push rod, and the wiring frame is fixedly installed at one end of the equipment body near the wiring head. The round plate moves, causing the square plate to move. The square plate moves and contacts and presses the beveled surface of the L-shaped plate upward. The L-shaped plate moves upward and contacts and presses the telescopic end of the first spring rod to retract, releasing the limiting on the equipment body. The square block continues to move, keeping the first spring rod in a retracted state, while the wiring head moves away from the inside of the wiring frame.

[0007] According to the above technical solution, the electric push rod is fixedly connected to the support plate, and the electric push rod slides through the inner and outer walls of the square block. The side of the limiting block away from the fixed plate is set with a beveled surface. A spring is provided between the fixed plate and the connector. A detection module and a control module are provided inside the connector. The control module is electrically connected to the electric push rod. The movement of the electric push rod drives the square block to move, and the beveled surface of the limiting block moves it towards the direction of the fixed plate.

[0008] According to the above technical solution, the first elastic rod is fixedly installed inside the limiting groove. The free end of the first telescopic elastic rod is fixedly connected to the side of the L-shaped plate away from the support plate. The side of the L-shaped plate close to the support plate is set as the second oblique surface. The surface of the support plate is provided with a fixing groove. The square plate moves to contact and press the oblique surface of the L-shaped plate to move upward. The L-shaped plate moves upward to contact and press the telescopic end of the first elastic rod to retract.

[0009] According to the above technical solution, the heat dissipation device includes a fixed frame, a support rod, a fan, a rotating rod, a feeding frame, a cam, a connecting plate, a connecting block, a receiving plate, and an air inlet plate. The fixed frame is fixedly installed through the inner and outer walls of the equipment frame. The support rod is fixedly installed inside the fixed frame. The fan is fixedly installed at the end of the support rod away from the fixed frame. The rotating rod is fixedly installed at the end of the fan away from the support rod. The feeding frame is fixedly installed inside the fixed frame. The cam is fixedly installed on the circumferential surface of the rotating rod. The connecting plate is slidably installed inside the fixed frame. The connecting block is fixedly installed on the side of the connecting plate near the fan. The receiving plate is fixedly installed on the side of the connecting plate away from the fan. The air inlet plate is fixedly installed inside the fixed frame. The upward movement of the connecting block causes the receiving plate to move upward. The upward movement of the receiving plate causes the telescopic end of the telescopic spring rod two to retract and then reset. The reset of the telescopic spring rod two causes the receiving plate to move downward. The downward movement of the receiving plate causes the connecting block to move downward.

[0010] According to the above technical solution, one side of the cam is set as a convex surface, the connecting plate contacts the cam, and the cam rotates to contact and squeeze the connecting block to move upward.

[0011] According to the above technical solution, a telescopic spring rod II is fixedly installed inside the feeding frame. The free end of the telescopic spring rod II is fixedly connected to the bottom of the receiving plate. When the receiving plate moves upward, it causes the telescopic end of the telescopic spring rod II to retract and then return to its original position.

[0012] According to the above technical solution, the scraping device includes a connecting rod, a sliding plate, a receiving block, and a scraper. A groove is provided on the surface of the fixed frame. The connecting rod is slidably installed inside the groove. The sliding plate is fixedly installed above the receiving plate. The receiving block is fixedly installed on the side of the receiving plate away from the cam. The scraper is slidably installed on the side of the air inlet plate away from the receiving plate. The upward movement of the sliding plate drives the connecting rod to move upward. Because the connecting rod slides inside the groove, the upward movement of the receiving plate drives the sliding plate to slide inside the groove along with the connecting rod.

[0013] According to the above technical solution, the connecting rod is fixedly inserted through the inner and outer walls of the sliding plate, the surface of the air inlet plate is provided with a moving groove, a receiving block is slidably installed inside the moving groove, and a scraper is fixedly connected to the side of the receiving block away from the receiving plate. The connecting rod slides inside the groove, and the receiving plate moves upward, causing the sliding plate to slide inside the groove along with the connecting rod.

[0014] This invention provides a power cabinet with a leakage current monitoring structure. It has the following advantages:

[0015] (1) The power cabinet with leakage current monitoring structure achieves detection after the limit is reached through the coordinated operation of square blocks, round plates, terminals, wires, fixing plates, limit blocks, L-shaped plates, square blocks and wiring frames. This ensures that the power cabinet can be repaired or operated in a safe state, and protects the safety of operators to the greatest extent. At the same time, detection after the limit is reached can identify potential electrical faults earlier. In the event of leakage, the detection is interrupted. After the limit is released, the power cabinet can take immediate measures to protect the internal electrical equipment and reduce the risk of equipment damage caused by leakage.

[0016] (2) The power cabinet with leakage monitoring structure, through the coordinated operation of the fixed frame, support rod, fan, rotating rod, feeding frame, cam, connecting plate, connecting block, receiving plate and air inlet plate, realizes the shaking of the desiccant inside while performing heat dissipation and ventilation. During the ventilation and heat dissipation process, shaking the desiccant can increase the airflow, thereby accelerating the air circulation in the cabinet and further improving the heat dissipation effect. At the same time, by shaking the desiccant, the risk of material aging can be reduced, ensuring that the desiccant maintains good performance throughout the entire service life, thereby extending its service life.

[0017] (3) The power cabinet with leakage current monitoring structure, through the coordinated operation of the connecting rod, sliding plate and receiving block scraper, can promote better contact between the desiccant and the moisture in the air by scraping, increase the surface area of ​​the desiccant, thereby improving the moisture absorption efficiency and further increasing the dehumidification effect. At the same time, scraping the surface of the air inlet plate prevents the accumulation of dust and dirt on the surface of the air inlet plate, which would hinder air flow. Regular cleaning of the air inlet plate can reduce the frequency of maintenance caused by equipment overheating or failure, thereby reducing the overall maintenance cost. Attached Figure Description

[0018] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 is a schematic cross-sectional view of the overall structure of the present invention;

[0020] Figure 3 is a schematic diagram of the positional structure of the circular plate and the square block of the present invention;

[0021] Figure 4 is an enlarged schematic diagram of structure A in Figure 3 of the present invention;

[0022] Figure 5 is a schematic diagram of the positional structure of the support plate and the square block of the present invention;

[0023] Figure 6 is an enlarged schematic diagram of structure B in Figure 5 of the present invention;

[0024] Figure 7 is a schematic diagram of the positional structure of the connecting plate and connecting block of the present invention;

[0025] Figure 8 is an enlarged schematic diagram of structure C in Figure 7 of the present invention;

[0026] Figure 9 is a schematic diagram of the position structure of the air inlet plate and scraper of the present invention.

[0027] In the diagram: 1. Equipment frame; 2. Support plate; 201. Fixing groove; 3. Electric push rod; 4. Square block; 401. Limiting groove; 5. Round plate; 6. Wiring head; 7. Wire; 8. Fixing plate; 9. Limiting block; 10. Spring; 11. L-shaped plate; 12. Square block; 13. Telescopic spring rod one; 14. Wiring frame; 15. Equipment body; 161. Fixing frame; 162. Support rod; 163. Fan; 164. Rotating rod; 165. Discharge frame; 166. Cam; 167. Connecting plate; 168. Connecting block; 169. Receiving plate; 1610. Air inlet plate; 1611. Telescopic spring rod two; 171. Slide groove; 172. Connecting rod; 173. Sliding plate; 174. Receiving block; 175. Moving groove; 176. Scraper. Detailed Implementation

[0028] 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 of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0029] Please refer to Figures 1-9. One embodiment of the present invention is: a power cabinet with a leakage current monitoring structure, including a device frame 1, a support plate 2 fixedly installed inside the device frame 1, an electric push rod 3 fixedly installed inside the device frame 1 on the side away from the output end, a device body 15 fixedly installed inside the device frame 1, and a limiting device; wherein, the limiting device includes a square block 4, a circular plate 5, a terminal block 6, a wire 7, a fixing plate 8, a limiting block 9, an L-shaped plate 11, a square block 12, and a terminal block 14. The square block 4 is slidably installed above the support plate 2, the circular plate 5 is fixedly installed on the circumference of the electric push rod 3, the terminal block 6 is fixedly installed through the inner and outer walls of the square block 4, and the wire 7 is fixedly installed... The terminal block 6 is installed at the end away from the equipment body 15. The fixing plate 8 is fixedly installed at the end of the square block 4 near the electric push rod 3. The limiting block 9 is slidably installed at the end of the square block 4 near the electric push rod 3. The surface of the square block 4 has a limiting groove 401. The L-shaped plate 11 is slidably installed inside the limiting groove 401. The square block 12 is fixedly installed at the end of the round plate 5 near the electric push rod 3. The wiring frame 14 is fixedly installed at the end of the equipment body 15 near the terminal block 6. The terminal block 6 moves away from the inside of the wiring frame 14 and performs an interruption detection. After the limit is released, the power cabinet can immediately take measures to protect the internal electrical equipment and reduce the risk of equipment damage caused by leakage.

[0030] The electric push rod 3 is fixedly connected to the support plate 2. The electric push rod 3 slides through the inner and outer walls of the square block 4. The side of the limiting block 9 away from the fixed plate 8 is set with a bevel. A spring 10 is set between the fixed plate 8 and the limiting block 9. The wiring head 6 is equipped with a detection module and a control module. The control module is electrically connected to the electric push rod 3. The movement of the electric push rod 3 drives the square block 4 to move, and the bevel of the limiting block 9 moves it closer to the fixed plate 8.

[0031] A telescopic spring rod 13 is fixedly installed inside the limiting groove 401. The free end of the telescopic spring rod 13 is fixedly connected to the side of the L-shaped plate 11 away from the support plate 2. The side of the L-shaped plate 11 close to the support plate 2 is set as a beveled surface. A fixing groove 201 is opened on the surface of the support plate 2. The block 12 moves to contact and press the beveled surface of the L-shaped plate 11 to move upward. The L-shaped plate 11 moves upward to contact and press the telescopic end of the telescopic spring rod 13 to retract.

[0032] In this embodiment, during operation: when the movable connector 6 penetrates the square block 4, it first contacts the beveled surface of the compression limiting block 9 and moves it towards the fixed plate 8. The limiting block 9 then contacts the compression spring 10 and retracts. When the connector 6 completely penetrates the square block 4, the spring 10 resets, causing the limiting block 9 to move away from the fixed plate 8 and limiting the connector 6. Subsequently, the output end of the electric push rod 3 moves towards the device body 15, causing the circular plate 5 to move. The electric push rod 3 moves, causing the square block 4 to move. The square block 4 contacts the fixing groove 201, causing the telescopic end of the telescopic spring rod 13 to release its retracted state and enter the fixing groove 201 to limit the device body 15. When the square block 4 moves to the fixing groove 201 and is limited, When the terminal 6 enters the wiring frame 14, and the detection module detects leakage, the control module can activate the electric push rod 3. The output end of the electric push rod 3 moves away from the equipment body 15, causing the circular plate 5 to move. The circular plate 5 moves, causing the square block 12 to move. The square block 12 moves and contacts the chamfered surface of the L-shaped plate 11 and moves upward. The L-shaped plate 11 moves upward and contacts the telescopic end of the telescopic spring rod 13, which retracts, releasing the restriction on the equipment body 15. The square block 4 continues to move, keeping the telescopic spring rod 13 in a retracted state. At the same time, the terminal 6 moves away from the wiring frame 14 and performs an interruption detection. After the restriction is released, the power cabinet can immediately take measures to protect the internal electrical equipment and reduce the risk of equipment damage caused by leakage.

[0033] Please refer to Figures 1-9. Based on the above embodiments, a heat dissipation device and a scraping device are also included.

[0034] The heat dissipation device includes a fixed frame 161, a support rod 162, a fan 163, a rotating rod 164, a feeding frame 165, a cam 166, a connecting plate 167, a connecting block 168, a receiving plate 169, and an air inlet plate 1610. The fixed frame 161 is fixedly inserted through the inner and outer walls of the equipment frame 1. Support rod 162 is fixedly installed inside fixed frame 161. Fan 163 is fixedly installed at the end of support rod 162 away from fixed frame 161. Rotating rod 164 is fixedly installed at the end of fan 163 away from support rod 162. Discharge frame 165 is fixedly installed inside fixed frame 161. Cam 166 is fixedly installed on the circumferential surface of rotating rod 164. Connecting plate 167 is slidably installed inside fixed frame 161. Connecting block 168 is fixedly installed on the side of connecting plate 167 near fan 163. Receiving plate 169 is fixedly installed on the side of connecting plate 167 away from fan 163. Air inlet plate 1610 is fixedly installed inside fixed frame 161. Receiving plate 169 moves up and down under the action of contact and compression by cam 166. By shaking the desiccant, the risk of material aging can be reduced, ensuring that the desiccant maintains good performance throughout its service life, thereby extending its service life.

[0035] One side of the cam 166 is set as a convex surface, and the connecting plate 167 contacts the cam 166. The cam 166 rotates and contacts the connecting block 168 to move upward.

[0036] A telescopic spring rod 1611 is fixedly installed inside the feeding frame 165. The free end of the telescopic spring rod 1611 is fixedly connected to the bottom of the receiving plate 169. When the receiving plate 169 moves upward, it causes the telescopic end of the telescopic spring rod 1611 to retract and then return to its original position.

[0037] The scraping device includes a connecting rod 172, a sliding plate 173, a receiving block 174, and a scraper 176. A groove 171 is provided on the surface of the fixed frame 161. The connecting rod 172 is slidably installed inside the groove 171. The sliding plate 173 is fixedly installed above the receiving plate 169. The receiving block 174 is fixedly installed on the side of the receiving plate 169 away from the cam 166. The scraper 176 is slidably installed on the side of the air inlet plate 1610 away from the receiving plate 169. The scraper 176 moves upward to scrape the surface of the air inlet plate 1610, preventing dust and dirt from accumulating on the surface of the air inlet plate 1610 and obstructing airflow. At the same time, regular cleaning of the air inlet plate 1610 can reduce the frequency of maintenance due to equipment overheating or failure, thereby reducing the overall maintenance cost.

[0038] The connecting rod 172 is fixedly inserted through the inner and outer walls of the sliding plate 173. The surface of the air inlet plate 1610 is provided with a moving groove 175. A receiving block 174 is slidably installed inside the moving groove 175. A scraper 176 is fixedly connected to the side of the receiving block 174 away from the receiving plate 169. The connecting rod 172 slides inside the slide groove 171. The receiving plate 169 moves upward, causing the sliding plate 173 to slide inside the slide groove 171 along with the connecting rod 172.

[0039] In this embodiment, when the power cabinet overheats, the fan 163 rotates, causing the rotating rod 164 to rotate. The rotating rod 164 rotates, causing the cam 166 to rotate. The rotating cam 166 contacts and presses the connecting block 168 upward. The upward movement of the connecting block 168 causes the receiving plate 169 to move upward. The upward movement of the receiving plate 169 causes the telescopic end of the telescopic spring rod 1611 to retract and then reset. The reset of the telescopic spring rod 1611 causes the receiving plate 169 to move downward. The downward movement of the receiving plate 169 causes the connecting block 168 to move downward. The cam 166 moves up and down under the pressure of contact, and shakes the desiccant inside, allowing it to have greater contact with the receiving plate 169, thus increasing the dehumidification effect. This achieves the simultaneous dissipation and ventilation while shaking the desiccant inside. During the ventilation and heat dissipation process, shaking the desiccant increases the airflow, thereby accelerating the air circulation inside the cabinet and further improving the heat dissipation effect. At the same time, shaking the desiccant can reduce the risk of material aging and ensure that the desiccant maintains good performance throughout its service life, thereby extending its service life.

[0040] As the receiving plate 169 moves upward, it drives the sliding plate 173 upward. The upward movement of the sliding plate 173 drives the connecting rod 172 upward. Because the connecting rod 172 slides inside the groove 171, the upward movement of the receiving plate 169 causes the sliding plate 173 to slide along with the connecting rod 172 inside the groove 171. At the same time, the sliding plate 173 moves upward with the receiving plate 169 and evenly coats the desiccant on the surface of the receiving plate 169. By scraping, it can promote better contact between the desiccant and the moisture in the air. Increasing the surface area of ​​the desiccant improves the moisture absorption efficiency and further enhances the dehumidification effect. At the same time, when the receiving plate 169 moves upward, it drives the receiving block 174 to move upward, which in turn drives the scraper 176 to move upward. The scraper 176 scrapes the surface of the air inlet plate 1610 to prevent dust and dirt from accumulating on the surface of the air inlet plate 1610 and obstructing airflow. Regularly cleaning the air inlet plate 1610 can reduce the frequency of maintenance due to equipment overheating or malfunction, thereby reducing the overall maintenance cost.

[0041] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A power cabinet with a leakage current monitoring structure, comprising a device frame (1), a support plate (2) fixedly installed inside the device frame (1), an electric push rod (3) fixedly installed inside the device frame (1), and a device body (15) fixedly installed inside the device frame (1), characterized in that: It also includes a limiting device, a heat dissipation device, and a scraping device; wherein, the limiting device includes a square block (4), a round plate (5), a connector (6), a wire (7), a fixing plate (8), a limiting block (9), an L-shaped plate (11), a square block (12), and a wiring frame (14). The square block (4) is slidably installed above the support plate (2). The round plate (5) is fixedly installed at the output end of the electric push rod (3). The connector (6) is fixedly installed through the inner and outer walls of the square block (4). The wire (7) is fixedly installed at the end of the connector (6) away from the equipment body (15). The fixing plate (8) is fixedly installed at the end of the square block (4) near the electric push rod (3). The limiting block (9) is slidably installed on the square block (4). Block (4) is located near one end of the electric push rod (3). A limiting groove (401) is provided on the surface of the square block (4). The L-shaped plate (11) is slidably installed inside the limiting groove (401). The square block (12) is fixedly installed on one end of the round plate (5) near the electric push rod (3). The wiring frame (14) is fixedly installed on one end of the equipment body (15) near the wiring head (6). The heat dissipation device includes a fixed frame (161), a support rod (162), a fan (163), a rotating rod (164), a feeding frame (165), a cam (166), a connecting plate (167), a connecting block (168), a receiving plate (169), and an air inlet plate (1610). The fixed frame (161) is fixedly installed on one end of the electric push rod (3). The support rod (162) is fixedly installed inside the fixed frame (161) through the inner and outer walls of the equipment frame (1). The fan (163) is fixedly installed at the end of the support rod (162) away from the fixed frame (161). The rotating rod (164) is fixedly installed at the end of the fan (163) away from the support rod (162). The feeding frame (165) is fixedly installed inside the fixed frame (161). The cam (166) is fixedly installed on the circumferential surface of the rotating rod (164). The connecting plate (167) is slidably installed inside the feeding frame (165). The connecting block (168) is fixedly installed on the side of the connecting plate (167) near the fan (163). The receiving plate (169) is fixedly installed on the inner and outer walls of the equipment frame (1). The connecting plate (167) is located away from the fan (163), and the air inlet plate (1610) is fixedly installed inside the fixed frame (161). The scraping device includes a connecting rod (172), a sliding plate (173), a receiving block (174), and a scraper (176). The fixed frame (161) has a groove (171) on its surface. The connecting rod (172) is slidably installed inside the groove (171). The sliding plate (173) is slidably installed above the receiving plate (169). The receiving block (174) is fixedly installed on the side of the receiving plate (169) away from the cam (166), and the scraper (176) is slidably installed on the side of the air inlet plate (1610) away from the receiving plate (169).

2. The power cabinet with leakage current monitoring structure according to claim 1, characterized in that: The output end of the electric push rod (3) slides through the inner and outer walls of the square block (4). The side of the limiting block (9) away from the fixed plate (8) is set as a bevel. A spring (10) is provided between the fixed plate (8) and the limiting block (9). The wiring head (6) is equipped with a detection module and a control module. The control module is electrically connected to the electric push rod (3).

3. A power cabinet with a leakage current monitoring structure according to claim 2, characterized in that: The limiting groove (401) is fixedly installed with a telescopic spring rod (13). The free end of the telescopic spring rod (13) is fixedly connected to the side of the L-shaped plate (11) away from the support plate (2). The side of the L-shaped plate (11) close to the support plate (2) is set as a beveled surface. The surface of the support plate (2) is provided with a fixing groove (201).

4. A power cabinet with a leakage current monitoring structure according to claim 3, characterized in that: One side of the cam (166) is convex, and the connecting plate (167) contacts the cam (166).

5. A power cabinet with a leakage current monitoring structure according to claim 4, characterized in that: The material feeding frame (165) is fixedly installed with a telescopic spring rod two (1611), and the free end of the telescopic spring rod two (1611) is fixedly connected to the bottom of the receiving plate (169).

6. A power cabinet with a leakage current monitoring structure according to claim 5, characterized in that: The connecting rod (172) is fixedly inserted through the sliding plate (173). The surface of the air inlet plate (1610) is provided with a moving groove (175). The receiving block (174) is slidably connected to the inner wall of the moving groove (175). The side of the receiving block (174) away from the receiving plate (169) is fixedly connected to the scraper (176).

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