Intelligent switch cabinet loop current protection device

Abstract

The utility model relates to the technical field of intelligent switch cabinets, and discloses an intelligent switch cabinet loop current protection device, which comprises a box body, the bottom of the inner surface of the box body is fixedly connected with an insulating plate, when the current needs to be controlled, for example, the load current is too large, the operation of a first motor is controlled, and the current is read through an electricity measuring module; under the assistance of a fixing plate and a fixing shaft, a first motor drives a rotating rod to rotate, the rotating rod drives a carbon brush head to rotate, at the moment, the carbon brush head rotates at the top of a conductive coil, and due to the fact that resistance values of all areas of the conductive coil are different, the current can be controlled; therefore, the impedance of the power supply line can be automatically increased to reduce the loop current to ensure the normal operation of the device, if the load current is too small, the impedance of the power supply line can be automatically reduced to increase the loop current to ensure the normal operation of the device under the action of the carbon brush head, and the device has the effects of controlling the current and ensuring the normal operation of the device.

Description

Technical Field

[0001] The utility model relates to the technical field of intelligent switch cabinets, in particular to a loop current protection device for an intelligent switch cabinet. Background Art

[0002] Current protection classical control theory, electrical terminology, when a short circuit occurs in a line, one of the important characteristics is that the current in the line increases sharply. When the current flows through a certain predetermined value, the protection device that reacts to the increase in current is called overcurrent protection. At this time, an intelligent switch cabinet is needed to protect the current and prevent losses caused by the current.

[0003] The present invention, according to the Chinese patent application number (202010584250.X), relates to an intelligent switch cabinet protection device and an intelligent switch cabinet. The intelligent switch cabinet protection device provided by the embodiment of the present invention has a simple structure and a reasonable design. It can adjust the inclination angle of the solar panel according to the weather conditions, thereby realizing the function switching between mainly collecting solar energy and mainly shielding against rain. It can collect solar energy to the greatest extent and prevent rainwater from contacting the switch cabinet. It is not only energy-saving and environmentally friendly, but also can prevent rainwater from rusting the switch cabinet, thereby increasing the service life of the switch cabinet.

[0004] The present invention has a simple structure and a reasonable design. It can adjust the inclination angle of the solar panel according to weather conditions, thereby realizing the function switching between mainly collecting solar energy and mainly shielding against rain. It can collect solar energy to the greatest extent and prevent rainwater from contacting the switch cabinet. It is not only energy-saving and environmentally friendly, but also can avoid the corrosion of the switch cabinet by rainwater, thereby increasing the service life of the switch cabinet. However, during use, such as when the load is running, the magnitude of the current cannot be controlled, resulting in unnecessary losses. After long-term use, a certain amount of heat will be generated inside the device, and the heat cannot be discharged, thereby increasing the probability of device failure. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings existing in the prior art, and the proposed intelligent switch cabinet loop current protection device solves the problem proposed in the above background technology that during use, such as when the load is running, the magnitude of the current cannot be controlled, causing unnecessary losses. After long-term use, a certain amount of heat will be generated inside, and the heat cannot be discharged, increasing the probability of device failure.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an intelligent switch cabinet loop current protection device, comprising a box body, an insulating plate fixedly connected to the bottom of the inner surface of the box body, a conductive coil fixedly connected to the top of the insulating plate, a fixed shaft fixedly connected to the top of the conductive coil, a fixed plate fixedly connected to the inner surface of the box body, an electrical measuring module fixedly connected to one side of the fixed plate, a motor 1 fixedly connected to one side of the fixed plate, a rotating rod fixedly connected to the output shaft of the motor 1, and a carbon brush head fixedly connected to one side of the rotating rod.

[0007] By adopting the above technical scheme, when it is necessary to control the current size, such as when the load current is too large, the operation of motor 1 is controlled, and the current is read by the electrical measuring module. With the assistance of the fixed plate and the fixed shaft, motor 1 drives the rotating rod to rotate, and the rotating rod drives the carbon brush head to rotate. At this time, the carbon brush head rotates on the top of the conductive coil. Since the resistance values ​​of different areas of the conductive coil itself are different, the current size can be controlled, so that the impedance of the power supply line can be automatically increased to reduce the loop current to ensure the normal operation of the device. If the load current is too small, as above, under the action of the carbon brush head, the impedance of the power supply line can be automatically reduced to increase the loop current to ensure the normal operation of the device. It has the function of controlling the current size and ensuring the normal operation of the equipment.

[0008] Furthermore, the inner surface of the box body is fixedly connected to motor 2, the output shaft of motor 2 is fixedly connected to forward and reverse threaded rods, the inner surface of the box body is fixedly connected to a rack and a limit rod, the opposite sides of the two limit rods are slidably connected to a rotating shaft and a slider, the outer surface of the rotating shaft is fixedly connected to a bevel gear, the outer surface of the rotating shaft is rotatably connected to a U-shaped frame block, and the inside of the U-shaped frame block is rotatably connected to fan blades.

[0009] By adopting the above technical solution, when reciprocating movement is required, the operation of motor 2 is controlled, and motor 2 drives the forward and reverse threaded rods to rotate. With the assistance of the limit rod, the forward and reverse threaded rods drive the slider to move, the slider drives the U-shaped frame block to move, the U-shaped frame block drives the rotating shaft to move, the rotating shaft drives the two bevel gears to move, and the U-shaped frame block drives the fan blades to move, which has the function of reciprocating movement.

[0010] Furthermore, one end of the rotating shaft is fixedly connected to a positive ratchet, the outer surface of the rotating shaft is rotatably connected to a groove gear, the inner surface of the groove gear is rotatably connected to a positive ratchet buckle, one side of the positive ratchet buckle is fixedly connected to a positive ratchet spring, the other end of the rotating shaft is fixedly connected to a reverse ratchet, the inner surface of another groove gear is rotatably connected to a reverse ratchet buckle, and one side of the reverse ratchet buckle is fixedly connected to a reverse ratchet spring.

[0011] By adopting the above technical scheme, when it is necessary to blow air for heat dissipation, as above, when the rotating shaft moves, the rotating shaft drives another groove gear to rotate on the rack. At this time, one groove gear drives the positive ratchet buckle to rotate. Under the action of the positive ratchet spring, the positive ratchet buckle is stuck in the positive ratchet spring. At this time, the positive ratchet buckle drives the positive ratchet wheel to rotate, the positive ratchet wheel drives the rotating shaft to rotate, the rotating shaft drives the bevel gear to rotate, the bevel gear drives another bevel gear to rotate, and the other bevel gear drives the fan blades to rotate. When the rotating shaft moves back, the positive ratchet buckle is disengaged from the positive ratchet wheel, and then under the action of the reverse ratchet spring, the reverse ratchet buckle is stuck in the inside of the reverse ratchet wheel. As above, the rotation of the reverse ratchet buckle drives the rotation of the reverse ratchet wheel, and the reverse ratchet wheel drives the rotating shaft to rotate. As above, the fan blades are rotated to dissipate heat, which has the effect of heat dissipation.

[0012] Furthermore, the electrical measurement module and the conductive coil are electrically connected, the output shaft of the motor 1 is rotatably connected to the fixed shaft, and the carbon brush head is rotatably connected to the top of the conductive coil.

[0013] By adopting the above technical solution, with the assistance of the fixed plate and the fixed shaft, the motor drives the rotating rod to rotate, and the rotating rod drives the carbon brush head to rotate. At this time, the carbon brush head rotates on the top of the conductive coil and has a rotating effect.

[0014] Furthermore, the other end of the forward and reverse threaded rod is rotatably connected to the box body, there are two bevel gears, the two bevel gears are meshingly connected, the fan blade is fixedly connected to another bevel gear, the U-shaped frame block is fixedly connected to the slider, and the outer surface of the forward and reverse threaded rod is threadedly connected to the slider.

[0015] By adopting the above technical solution, the positive and negative threaded rods drive the slider to move, the slider drives the U-shaped frame block to move, the U-shaped frame block drives the rotating shaft to move, the rotating shaft drives the two bevel gears to move, and the U-shaped frame block drives the fan blades to move, which has the function of power transmission.

[0016] Furthermore, the other end of the positive thorn spring is fixedly connected to the groove gear, the positive thorn buckle is adapted to the positive ratchet, the rack is meshed with the groove gear, the positive ratchet is located inside the groove gear, the other end of the reverse thorn spring is fixedly connected to another groove gear, the reverse thorn buckle is adapted to the reverse ratchet, the reverse ratchet is located inside another groove gear, a door is hinged on one side of the box, and a support leg is fixedly connected to the bottom of the box.

[0017] By adopting the above technical solution, the positive ratchet buckle is stuck in the positive ratchet spring. At this time, the positive ratchet buckle drives the positive ratchet to rotate, the positive ratchet drives the rotating shaft to rotate, the rotating shaft drives the bevel gear to rotate, the bevel gear drives another bevel gear to rotate, and the other bevel gear drives the fan blades to rotate. When the rotating shaft moves back, the positive ratchet buckle is disengaged from the positive ratchet, and then under the action of the reverse ratchet spring, the reverse ratchet buckle is stuck in the inside of the reverse ratchet. As above, the rotation of the reverse ratchet buckle drives the rotation of the reverse ratchet, which has the function of controlling the rotation.

[0018] The utility model provides an intelligent switch cabinet loop current protection device, which has the following beneficial effects:

[0019] 1. This kind of intelligent switch cabinet loop current protection device, when it is necessary to control the current size, such as the load current is too large, controls the operation of motor 1, reads the current through the electrical measurement module, with the assistance of the fixed plate and the fixed shaft, the motor 1 drives the rotating rod to rotate, and the rotating rod drives the carbon brush head to rotate. At this time, the carbon brush head rotates on the top of the conductive coil. Since the resistance values ​​of the conductive coil itself are different in different areas, the current size can be controlled, so that the impedance of the power supply line can be automatically increased to reduce the loop current to ensure the normal operation of the device. If the load current is too small, as above, under the action of the carbon brush head, the impedance of the power supply line can be automatically reduced to increase the loop current to ensure the normal operation of the device, which has the function of controlling the current size and ensuring the normal operation of the equipment.

[0020] 2. When the intelligent switch cabinet loop current protection device needs to move back and forth, the operation of the second motor is controlled, and the second motor drives the positive and negative threaded rod to rotate. With the assistance of the limit rod, the positive and negative threaded rod drives the slider to move, the slider drives the U-shaped frame block to move, the U-shaped frame block drives the shaft to move, the shaft drives the two bevel gears to move, and the U-shaped frame block drives the fan blades to move. When it is necessary to blow air for heat dissipation, the shaft drives another groove gear to rotate on the rack when the shaft moves. At this time, a groove gear drives the positive thorn buckle to rotate. Under the positive thorn spring Under the action of the reverse ratchet spring, the positive ratchet buckle is stuck in the positive ratchet spring. At this time, the positive ratchet buckle drives the positive ratchet to rotate, the positive ratchet drives the rotating shaft to rotate, the rotating shaft drives the bevel gear to rotate, the bevel gear drives another bevel gear to rotate, and the other bevel gear drives the fan blades to rotate. When the rotating shaft moves back, the positive ratchet buckle is separated from the positive ratchet. Then, under the action of the reverse ratchet spring, the reverse ratchet buckle is stuck in the inside of the reverse ratchet. As above, the rotation of the reverse ratchet buckle drives the rotation of the reverse ratchet, and the reverse ratchet drives the rotating shaft to rotate. As above, the fan blades rotate to dissipate heat, which has the effect of heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of closing the intelligent switch cabinet loop current protection device proposed by the utility model;

[0022] Figure 2This is a schematic diagram of opening the intelligent switch cabinet loop current protection device proposed by the utility model;

[0023] Figure 3 It is a side sectional view of the intelligent switch cabinet loop current protection device proposed by the utility model;

[0024] Figure 4 This is a partial structural diagram of the intelligent switch cabinet loop current protection device proposed by the utility model;

[0025] Figure 5 It is a partial cross-sectional view of the intelligent switch cabinet loop current protection device proposed by the utility model;

[0026] Figure 6 This is a partial structural diagram of the intelligent switch cabinet loop current protection device proposed by the utility model.

[0027] Legend:

[0028] 1. Box body; 2. Door; 3. Support leg; 4. Fixed plate; 5. Electricity measuring module; 6. Insulating plate; 7. Fixed shaft; 8. Conductive coil; 9. Rotating rod; 10. Carbon brush head; 11. Motor 1; 12. Positive and negative threaded rod; 13. Motor 2; 14. Anti-thorn spring; 15. Rack; 16. Limit rod; 17. Fan blade; 18. U-shaped frame block; 19. Conical gear; 20. Anti-thorn buckle; 21. Slider; 22. Grooved gear; 23. Rotating shaft; 24. Positive ratchet; 25. Positive ratchet buckle; 26. Positive ratchet spring; 27. Anti-ratchet. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Reference Figure 1-6The utility model provides an embodiment: an intelligent switch cabinet loop current protection device, including a box body 1, an insulating plate 6 is fixedly connected to the bottom of the inner surface of the box body 1, a conductive coil 8 is fixedly connected to the top of the insulating plate 6, a fixed shaft 7 is fixedly connected to the top of the conductive coil 8, a fixed plate 4 is fixedly connected to the inner surface of the box body 1, a power measuring module 5 is fixedly connected to one side of the fixed plate 4, a motor 11 is fixedly connected to one side of the fixed plate 4, a rotating rod 9 is fixedly connected to the output shaft of the motor 11, and a carbon brush head 10 is fixedly connected to one side of the rotating rod 9. When the current size needs to be controlled, such as when the load current is too large, the operation of the motor 11 is controlled. Through the reading of the current by the electric measuring module 5, with the assistance of the fixed plate 4 and the fixed shaft 7, the motor 11 drives the rotating rod 9 to rotate, and the rotating rod 9 drives the carbon brush head 10 to rotate. At this time, the carbon brush head 10 rotates on the top of the conductive coil 8. Because the resistance values ​​of each region of the conductive coil 8 are different, the magnitude of the current can be controlled, so that the impedance of the power supply line can be automatically increased to reduce the loop current to ensure the normal operation of the device. If the load current is too small, the same as above, under the action of the carbon brush head 10, the impedance of the power supply line can be automatically reduced to increase the loop current to ensure the normal operation of the device, which has the function of controlling the current size and ensuring the normal operation of the equipment. The electric measuring module 5 and the conductive coil 8 are electrically connected, the output shaft of the motor 11 is rotationally connected to the fixed shaft 7, and the carbon brush head 10 is rotationally connected to the top of the conductive coil 8. With the assistance of the fixed plate 4 and the fixed shaft 7, the motor 11 drives the rotating rod 9 to rotate, and the rotating rod 9 drives the carbon brush head 10 to rotate. At this time, the carbon brush head 10 rotates on the top of the conductive coil 8, which has the function of rotating.

[0031] Reference Figure 1-6The utility model provides an embodiment: the inner surface of the box body 1 is fixedly connected with the motor 2 13, the output shaft of the motor 2 13 is fixedly connected with the positive and negative threaded rod 12, the inner surface of the box body 1 is fixedly connected with the rack 15 and the limit rod 16, the opposite side of the two limit rods 16 is slidably connected with the rotating shaft 23 and the slider 21, the outer surface of the rotating shaft 23 is fixedly connected with the bevel gear 19, the outer surface of the rotating shaft 23 is rotatably connected with the U-shaped frame block 18, and the internal rotation of the U-shaped frame block 18 is connected with the fan blade 17. When reciprocating movement is required, the operation of the motor 2 13 is controlled, the motor 2 13 drives the positive and negative threaded rod 12 to rotate, and with the assistance of the limit rod 16, the positive and negative threaded rod 12 drives the slider 21 to move, the slider 21 drives the U-shaped frame block 18 to move, the U-shaped frame block 18 drives the rotating shaft 23 to move, the rotating shaft 23 drives the two bevel gears 19 to move, and the U-shaped frame block 18 drives the fan blade 17 to move, which has the function of reciprocating movement. One end of the rotating shaft 23 is fixedly connected to a positive ratchet 24, the outer surface of the rotating shaft 23 is rotatably connected to a groove gear 22, the inner surface of the groove gear 22 is rotatably connected to a positive thorn buckle 25, one side of the positive thorn buckle 25 is fixedly connected to a positive thorn spring 26, the other end of the rotating shaft 23 is fixedly connected to a reverse ratchet 27, the inner surface of another groove gear 22 is rotatably connected to a reverse thorn buckle 20, one side of the reverse thorn buckle 20 is fixedly connected to a reverse thorn spring 14, when it is necessary to blow air for heat dissipation, When the rotating shaft 23 moves, the rotating shaft 23 drives another groove gear 22 to rotate on the rack 15. At this time, one groove gear 22 drives the positive thorn buckle 25 to rotate. Under the action of the positive thorn spring 26, the positive thorn buckle 25 is stuck in the positive thorn spring 26. At this time, the positive thorn buckle 25 drives the positive ratchet 24 to rotate, and the positive ratchet 24 drives the rotating shaft 23 to rotate. The rotating shaft 23 drives the bevel gear 19 to rotate, and the bevel gear 19 drives another bevel gear 19 to rotate, and the other bevel gear 19 drives the fan blade 17 to rotate. When the rotating shaft 23 moves back, the positive thorn buckle 25 is disengaged from the positive ratchet 24. Then, under the action of the reverse thorn spring 14, the reverse thorn buckle 20 is stuck in the reverse ratchet 27. As above, the rotation of the reverse thorn buckle 20 drives the rotation of the reverse ratchet 27, and the reverse ratchet 27 drives the rotating shaft 23 to rotate. As above, the fan blade 17 rotates to dissipate heat, which has the effect of heat dissipation. The other end of the positive and reverse threaded rod 12 is rotatably connected to the box body 1. The number of bevel gears 19 is Two, two bevel gears 19 are meshed and connected, the fan blade 17 is fixedly connected to another bevel gear 19, the U-shaped frame block 18 is fixedly connected to the slider 21, the outer surface of the positive and negative threaded rod 12 is threadedly connected to the slider 21, the positive and negative threaded rod 12 drives the slider 21 to move, the slider 21 drives the U-shaped frame block 18 to move, the U-shaped frame block 18 drives the rotating shaft 23 to move, the rotating shaft 23 drives the two bevel gears 19 to move, and the U-shaped frame block 18 drives the fan blade 17 to move, which has the function of power transmission.The other end of the positive thorn spring 26 is fixedly connected to the groove gear 22, the positive thorn buckle 25 is adapted to the positive ratchet 24, the rack 15 is meshed with the groove gear 22, the positive ratchet 24 is located inside the groove gear 22, the other end of the reverse thorn spring 14 is fixedly connected to another groove gear 22, the reverse thorn buckle 20 is adapted to the reverse ratchet 27, the reverse ratchet 27 is located inside the other groove gear 22, a door 2 is hinged on one side of the box 1, a support leg 3 is fixedly connected to the bottom of the box 1, and the positive thorn buckle 25 is stuck in the positive thorn spring 26 At this time, the positive ratchet buckle 25 drives the positive ratchet 24 to rotate, the positive ratchet 24 drives the rotating shaft 23 to rotate, the rotating shaft 23 drives the bevel gear 19 to rotate, the bevel gear 19 drives another bevel gear 19 to rotate, and the other bevel gear 19 drives the fan blade 17 to rotate. When the rotating shaft 23 moves back, the positive ratchet buckle 25 disengages from the positive ratchet 24, and then under the action of the anti-rattle spring 14, the anti-rachet buckle 20 is stuck in the inside of the anti-ratchet 27. As above, the rotation of the anti-rachet buckle 20 drives the rotation of the anti-ratchet 27, which has the function of controlling the rotation.

[0032] Working principle: when it is necessary to control the current size, such as when the load current is too large, the operation of the motor 11 is controlled, and the current is read by the electrical measuring module 5. With the assistance of the fixed plate 4 and the fixed shaft 7, the motor 11 drives the rotating rod 9 to rotate, and the rotating rod 9 drives the carbon brush head 10 to rotate. At this time, the carbon brush head 10 rotates on the top of the conductive coil 8. Because the resistance values ​​of the conductive coil 8 itself are different in different regions, the current size can be controlled, so that the impedance of the power supply line can be automatically increased to reduce the loop current to ensure the normal operation of the device. If the load current is too small, as above, under the action of the carbon brush head 10, the impedance of the power supply line can be automatically reduced to increase the loop current to ensure the normal operation of the device. When reciprocating movement is required, the operation of the motor 2 13 is controlled, and the motor 2 13 drives the forward and reverse threaded rod 12 to rotate. With the assistance of the limit rod 16, the forward and reverse threaded rod 12 drives the slider 21 to move, the slider 21 drives the U-shaped frame block 18 to move, and the U-shaped frame block 18 drives the rotating shaft 23 to move. The rotating shaft 23 The two bevel gears 19 are driven to move, and the U-shaped frame block 18 drives the fan blades 17 to move. When it is necessary to blow air for heat dissipation, as above, when the shaft 23 moves, the shaft 23 drives another groove gear 22 to rotate on the rack 15. At this time, one groove gear 22 drives the positive thorn buckle 25 to rotate. Under the action of the positive thorn spring 26, the positive thorn buckle 25 is stuck in the positive thorn spring 26. At this time, the positive thorn buckle 25 drives the positive ratchet 24 to rotate, and the positive ratchet 24 drives the shaft 23 to rotate. The shaft 23 The bevel gear 19 is driven to rotate, and the bevel gear 19 drives another bevel gear 19 to rotate, and the other bevel gear 19 drives the fan blades 17 to rotate. When the rotating shaft 23 moves back, the positive ratchet buckle 25 is disengaged from the positive ratchet 24, and then under the action of the reverse ratchet spring 14, the reverse ratchet buckle 20 is stuck into the interior of the reverse ratchet 27. As above, the rotation of the reverse ratchet buckle 20 drives the rotation of the reverse ratchet 27, and the reverse ratchet 27 drives the rotating shaft 23 to rotate. As above, the fan blades 17 are rotated to dissipate heat.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An intelligent switch cabinet loop current protection device, comprising a box (1), characterized in that: An insulating plate (6) is fixedly connected to the bottom of the inner surface of the box body (1), a conductive coil (8) is fixedly connected to the top of the insulating plate (6), a fixed shaft (7) is fixedly connected to the top of the conductive coil (8), a fixed plate (4) is fixedly connected to the inner surface of the box body (1), an electrical measuring module (5) is fixedly connected to one side of the fixed plate (4), a motor 1 (11) is fixedly connected to one side of the fixed plate (4), an output shaft of the motor 1 (11) is fixedly connected to a rotating rod (9), and a carbon brush head (10) is fixedly connected to one side of the rotating rod (9).

2. The intelligent switch cabinet loop current protection device according to claim 1 is characterized in that: The inner surface of the box body (1) is fixedly connected to a second motor (13); the output shaft of the second motor (13) is fixedly connected to a forward and reverse threaded rod (12); the inner surface of the box body (1) is fixedly connected to a rack (15) and a limit rod (16); opposite sides of the two limit rods (16) are slidably connected to a rotating shaft (23) and a sliding block (21); the outer surface of the rotating shaft (23) is fixedly connected to a bevel gear (19); the outer surface of the rotating shaft (23) is rotatably connected to a U-shaped frame block (18); the interior of the U-shaped frame block (18) is rotatably connected to a fan blade (17).

3. The intelligent switch cabinet loop current protection device according to claim 2 is characterized in that: One end of the rotating shaft (23) is fixedly connected to a positive ratchet (24); the outer surface of the rotating shaft (23) is rotatably connected to a groove gear (22); the inner surface of the groove gear (22) is rotatably connected to a positive thorn buckle (25); one side of the positive thorn buckle (25) is fixedly connected to a positive thorn spring (26); the other end of the rotating shaft (23) is fixedly connected to a reverse ratchet (27); the inner surface of another groove gear (22) is rotatably connected to a reverse thorn buckle (20); one side of the reverse thorn buckle (20) is fixedly connected to a reverse thorn spring (14).

4. The intelligent switch cabinet loop current protection device according to claim 1, characterized in that: The electrical measurement module (5) and the conductive coil (8) are electrically connected, the output shaft of the motor 1 (11) is rotationally connected to the fixed shaft (7), and the carbon brush head (10) is rotationally connected to the top of the conductive coil (8).

5. The intelligent switch cabinet loop current protection device according to claim 2, characterized in that: The other end of the forward and reverse threaded rod (12) is rotatably connected to the box body (1), the number of the bevel gears (19) is two, the two bevel gears (19) are meshingly connected, the fan blade (17) is fixedly connected to another bevel gear (19), the U-shaped frame block (18) is fixedly connected to the slider (21), and the outer surface of the forward and reverse threaded rod (12) is threadedly connected to the slider (21).

6. The intelligent switch cabinet loop current protection device according to claim 3 is characterized in that: The other end of the positive thorn spring (26) is fixedly connected to the groove gear (22), the positive thorn buckle (25) is matched with the positive ratchet (24), the rack (15) is meshedly connected with the groove gear (22), the positive ratchet (24) is located inside the groove gear (22), the other end of the reverse thorn spring (14) is fixedly connected to another groove gear (22), the reverse thorn buckle (20) is matched with the reverse ratchet (27), and the reverse ratchet (27) is located inside the other groove gear (22), a door (2) is hinged on one side of the box body (1), and a support leg (3) is fixedly connected to the bottom of the box body (1).

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