Power distribution cabinet monitoring system

Abstract

The present invention provides a power distribution cabinet monitoring system, belonging to the technical field of power distribution cabinets. A temperature monitoring module and a humidity monitoring module are linearly and slidably installed on each guide rail inside the power distribution cabinet. Each guide rail is installed between two adjacent rows or columns of electrical components. When the temperature monitored by the temperature monitoring module exceeds the standard value at a certain position on the guide rail, only the air suction part at that position extracts the surrounding hot air. When the temperature returns below the standard value, the air suction element stops sucking air. The safety protection module includes a locking element and a protective suit. The locking element is a conditional constraint lock added to the power distribution cabinet based on the original cabinet lock. The protective suit includes an insulating work suit or / and an insulating tool suit. When the safety protection module is activated, the locking element can only open the cabinet door of the power distribution cabinet after the protective suit is taken out. The present invention can accurately monitor temperature and humidity, dissipate heat and dehumidify in a targeted manner, provide timely feedback, and achieve efficient processing.

Description

Technical Field

[0001] The present invention belongs to the technical field of distribution cabinets, and particularly relates to a distribution cabinet monitoring system. Background Art

[0002] The distribution cabinet is the terminal equipment of the power distribution system. It is the terminal control center of electric energy and is widely used in various places, such as schools, government agencies, hospitals, factories, workshops, families, etc. It can be used as the primary power distribution equipment in the power supply system or as the equipment for controlling and distributing electric energy, which is directly related to the safety of the operation of the entire power system. Therefore, the monitoring of the distribution cabinet is almost an essential operation and maintenance item. At present, the monitoring of the distribution cabinet is mainly divided into two categories. One is the monitoring of load indicators such as current and voltage during operation, which involves the performance monitoring of the power supply system itself; the other is the monitoring of the operating environment inside the distribution cabinet, mainly including the detection of temperature and humidity. If the temperature is too high, it will not only affect the operating efficiency and stability of electrical components, but also easily cause short circuits and even fires, which is extremely important. For humidity monitoring, it is mainly considered that internal electrical components cannot operate in a high-humidity environment, which not only easily causes corrosion and oxidation of electrical equipment, but also easily causes electric leakage and electric shock accidents, which is very dangerous.

[0003] Therefore, for the temperature and humidity monitoring of the distribution cabinet, it is never excessive no matter how it is carried out. However, the existing monitoring systems often use a temperature or humidity sensor at a fixed position for detection, and then are equipped with corresponding active ventilation equipment or drying equipment. The data collected is from a relatively constant position inside the distribution cabinet. However, in a distribution cabinet, there are often multiple electrical components neatly arranged, and due to differences in the structure of the distribution cabinet, such as differences in ventilation openings, the heat generation conditions and surrounding humidity of each component are not the same. If the traditional detection method is used, it is very likely that the local temperature or humidity, especially the temperature, may already be very high, but the temperature at the installation position of the corresponding sensor is still very low, which is likely to cause missed reports or false reports, and the monitoring data information is relatively lagged, and the feedback processing is not timely. Summary of the Invention

[0004] The present invention provides a distribution cabinet monitoring system to solve the problems of inaccurate detection data, lagged detection information, and untimely feedback processing when the existing distribution cabinet monitors temperature and humidity.

[0005] According to the purpose of the present invention, a distribution cabinet monitoring system is provided, including a temperature monitoring module, a humidity monitoring module, and a ventilation module for ventilating, dissipating heat, or drying the distribution cabinet. The ventilation module includes a plurality of suction parts, and the air inside the distribution cabinet is sucked away from the suction parts and discharged outside the distribution cabinet.

[0006] A plurality of guide rails are also installed in the power distribution cabinet, and the temperature monitoring module and the humidity monitoring module are linearly slidably installed on each guide rail. Each guide rail is installed between two adjacent rows or columns of electrical components. When the temperature monitoring module moves to a certain position of the guide rail and the collected temperature exceeds the standard, only the air intake part at that position will extract the surrounding hot air. When the temperature returns to below the standard value, the air intake element stops inhaling air.

[0007] It also includes a safety protection module, which is used to start when the humidity monitoring module detects that the humidity exceeds the standard; the safety protection module includes a locking element and a protection suit, and the locking element is a conditional constraint lock added to the distribution cabinet on the basis of the original cabinet lock. The protection suit includes an insulating work suit and / or an insulating tool suit. When the safety protection module is started, the locking element can open the cabinet door of the distribution cabinet only after the protection suit is taken out.

[0008] Furthermore, the air intake portion is an exhaust duct, and the air inlets of all the exhaust ducts are arranged at intervals along the length direction of the guide rail, and each air inlet corresponds to an electrical component, so as to timely extract the air around the corresponding electrical component.

[0009] Furthermore, the temperature monitoring module includes a temperature sensor, and the humidity monitoring module includes a humidity sensor. The temperature sensor and humidity sensor on each guide rail are installed on the same slider, and the slider is installed in a sliding manner with the guide rail; the air inlet end of the exhaust pipe is fixed on the slider, and the exhaust pipe is a spirally wrapped insulating hose arranged along the straight direction of the guide rail so that it can freely expand and contract with the movement of the slider.

[0010] Furthermore, the locking element is a hydraulic rod horizontally mounted on the outer surface of the first door panel of the double-leaf cabinet door, and the hydraulic rod is in an extended state only when the humidity value monitored by the humidity sensor exceeds the standard, so as to block the second door panel and prevent it from being opened outwards;

[0011] The protective suit is placed in a storage box. After the detection element in the protection box detects that the protective suit is taken away, a controller connected to the detection element drives the hydraulic rod to extend.

[0012] Further, the locking element includes a balance arm hinged on the first door panel, and an electromagnet, wherein an insulating frame and a sticky magnetic plate are fixed to both ends of the balance arm, the protective sleeve located on the insulating partition is placed in the insulating frame, the partition is supported and installed in the insulating frame by a plurality of supporting springs, a conductive sleeve is provided at the bottom of the insulating partition, the conductive sleeve is slidably fitted on a conductive column, and when the protective sleeve is completely placed on the partition, the conductive sleeve and the conductive column maintain a socket-fitting contact with each other, so that the power switch of the electromagnet is closed, and after the protective sleeve is completely separated from the partition, the insulating partition is pushed by the supporting spring to completely separate the conductive sleeve and the conductive column from each other;

[0013] When the humidity value detected by the humidity monitoring module exceeds the standard, the controller connected thereto drives a working switch of the electromagnet to close. Under the premise that the power switch is also closed, the electromagnet can be energized and suck down the originally raised magnetic plate, so that the insulating frame containing the protective suit rotates up to a horizontal position and is located in front of the second door panel to block it.

[0014] Furthermore, the balance arm is installed in a protective cabin on the surface of the first door panel, and the surface of the protective cabin has a viewing hole and a hinged sub-door panel. When the magnetic plate is in a tilted position, a touch screen of a fingerprint recognition module can be seen through the viewing hole. When the balance arm is in a horizontal position, the touch screen is covered by the magnetic plate. When the sub-door panel is opened, the insulating frame can be seen, and the protective set in the insulating frame can be directly taken out.

[0015] Furthermore, one end of the balance arm used to fix the insulating frame is an elastic telescopic end, and the elastic telescopic end will adaptively retract into the balance arm after the end of the insulating frame is squeezed to change the length of the entire balance arm;

[0016] The protective cabin has an opening on the side of the second door panel, and a sealing plate is horizontally slidably installed in the opening, and the sealing plate is slidably installed through a guide rod that penetrates the side wall of the protective cabin, and a limit block is provided at the end of the guide rod, and the limit block and the side wall of the protective cabin are connected by a reset spring, so that the sealing plate can completely seal the opening and is pushed open by the end of the insulating frame only when the balance arm is turned to a horizontal position; after the protective suit is completely put back, when the sealing plate is pressed to reset to the opening, the insulating frame can automatically swing down to the initial position after the elastic telescopic end retreats.

[0017] Furthermore, the guide rail is a hollow tubular structure, the ventilation module includes a sliding ring cover and a gas pipe joint fixed to one end of the sliding ring cover, the sliding ring cover is a closed and heat-conducting annular cover structure, and its internal space is filled with heat-sensitive gas that is easily expanded by heat;

[0018] The sliding ring cover is axially slidably fitted on the guide rail and cannot rotate relative to the guide rail. There is a long circular tube arranged radially inside the sliding ring cover. A piston insertion rod is axially elastically slidably installed in the long circular tube through a pressure-bearing spring. The inner hole of the guide rail is divided into several hole unit segments by partition plates arranged at intervals. Each hole unit segment is provided with a jack for the piston insertion rod to axially insert. When the sliding ring cover moves axially along the guide rail, if the thermosensitive gas expands due to heat, the piston insertion rod can be inserted into the jack to prevent the sliding ring cover from continuing to move. At this time, the air pipe joint is exactly aligned and connected with an exhaust hole on the guide rail, and the suction pipe connected to the air pipe joint is opened to exhaust outward.

[0019] Furthermore, the air pipe joint and the end face of the sliding ring cover are axially slidably fitted through a compression spring and a guide connecting rod. Under the action of the compression spring, the bottom end of the air pipe joint always firmly adheres to the surface of the guide rail and makes sliding and sealing contact therewith.

[0020] Furthermore, for each section of the hole unit segment, at the position where the piston insertion rod inserts into the jack, several ventilation holes are provided on the surface of the guide rail outside both ends of the sliding ring cover; the sliding ring cover is connected to a transmission belt, and both ends of the transmission belt are respectively wound around two transmission wheels located at both ends of the guide rail.

[0021] The beneficial effects of the present invention are as follows: The main effects of the present invention are generally as follows. It mainly adopts a moving temperature and humidity monitoring module to divide the internal area of the power distribution cabinet or monitor each electrical component. Only when the temperature and humidity exceed the standard, the ventilation module for active heat dissipation is started, greatly saving energy consumption, directly cooling and dissipating heat in a targeted manner, and having extremely high efficiency.

[0022] In addition, when the present invention detects that the temperature and humidity in the power distribution cabinet abnormally exceed the standard, it will start a protection mechanism to lock the cabinet door, and the unlocking method is that the internal protective suit must be taken away. It warns the staff that if they want to open the door for operation at this time, they need to put on the corresponding protective suit and use the corresponding protective tools, which plays a protective role for the staff. Otherwise, the power distribution cabinet cannot be opened. Description of the Drawings

[0023] Figure 1 is a schematic structural diagram of an embodiment of the present invention;

[0024] Figure 2 is a schematic diagram of a safety protection module of the present invention;

[0025] Figure 3 is an external schematic diagram of the protective cabin;

[0026] Figure 4 is a partially enlarged structural diagram of the insulating frame locking the second door panel;

[0027] Figure 5 is Figure 1 The structural schematic diagram when the ventilation module at position A in the middle is installed horizontally;

[0028] Figure 6 It is the end face schematic diagram of a sliding ring cover;

[0029] Figure 7 It is a driving schematic diagram of the sliding ring cover.

[0030] In the figure, the first door panel 1, the second door panel 2, the safety protection module 3, the balance arm 4, the magnetic adhesion plate 5, the insulating frame 6, the partition board 7, the support spring 8, the conductive sleeve 9, the conductive column 10, the fingerprint recognition module 11, the electromagnet 12, the working switch 13, the power supply switch 14, the controller 15, the sub-door panel 16, the protection cabin 17, the sealing plate 1701, the guide rod 18, the limit block 19, the return spring 20, the guide rail 21, the sliding ring cover 22, the long circular tube 23, the piston insertion rod 24, the jack 25, the air pipe joint 26, the extrusion spring 27, the guide connecting rod 28, the ventilation hole 29, the transmission belt 30, the transmission wheel 31, the partition board 32. Specific embodiments

[0031] In order to enable those skilled in the art to better understand the technical solutions in the embodiments of the present invention and make the above-mentioned objects, features, and advantages of the embodiments of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0032] In the description of the present invention, unless otherwise specified and limited, it should be noted that the term "connection" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be the communication inside two components. It can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific situations.

[0033] See Figure 1 , which is the structural schematic diagram of an embodiment of the power distribution cabinet monitoring system of the present invention. The power distribution cabinet monitoring system may include a temperature monitoring module and a humidity monitoring module, which are respectively provided with corresponding temperature sensors and humidity sensors, and also specifically provided with a ventilation module for ventilating and dissipating heat from the power distribution cabinet, or it can also be directly used for drying. Because sometimes, ventilation can achieve the exchange and discharge of the internal humid and hot air, playing a drying role. When necessary, a corresponding drying device can also be set. Specifically in this embodiment, the ventilation module here includes several suction parts, and the air in the power distribution cabinet is sucked away from the suction parts, so as to be discharged outside the power distribution cabinet to achieve the purpose of heat dissipation.

[0034] Meanwhile, in this embodiment, several guide rails 21 are also installed inside the power distribution cabinet. These guide rails 21 can be installed horizontally or vertically. A temperature monitoring module and a humidity monitoring module are slidably installed on each guide rail 21 in a straight line, so that the corresponding modules can slide in a straight line to inspect and detect the corresponding data. In this embodiment, each guide rail 21 is installed between two adjacent rows or two columns of electrical components. When the temperature monitored by the temperature monitoring module exceeds the standard when it moves to a certain position on the guide rail 21, only the air suction part at that position will extract the surrounding hot air, so as to perform targeted ventilation and heat dissipation. When the temperature returns below the standard value, the air suction element stops sucking air, thus saving energy consumption and avoiding the air suction part being in a continuous air suction or outward air extraction working state. In addition, this embodiment further includes a safety protection module 3. The safety protection module 3 is used to start when the humidity monitoring module monitors that the humidity exceeds the standard. Generally, when the temperature or humidity exceeds the standard, especially when the humidity exceeds the standard, there is a high possibility of danger in the internal electrical facilities and the installation environment. It is necessary to take precautions in advance and not perform corresponding operations as usual by simply opening the cabinet door. Safety is no small matter. In practice, this safety protection module 3 may include a locking element and a protective suit. The locking element is an additional conditional restraint lock added to the original cabinet lock of the power distribution cabinet. The so-called conditional restraint lock means that it only starts to play a role under certain conditions and is idle and ineffective usually. The mentioned protective suit includes an insulating work suit or / and an insulating tool suit. The insulating work suit can be insulating gloves, insulating clothes, insulating boots or insulating shoes, or even an anti-static suit, etc. The insulating tool suit is some existing electrical pens, screwdrivers, wire clamps, etc. with good insulation. When the safety protection module 3 of this embodiment is started, the locking element can only open the cabinet door of the power distribution cabinet after the protective suit is taken out. That is, the locking element and the protective suit in this embodiment are not independent of each other, but are used in combination and cooperation. Only after the protective suit is taken away can the power distribution cabinet be opened at this time.

[0035] Specifically, this air suction part is an air extraction pipe, that is, a pipe that can extract air outward. The air inlets of all air extraction pipes are arranged at intervals along the length direction of the guide rail 21. The specific structure can be designed adaptively and will not be elaborated here. Moreover, each air inlet corresponds to an electrical component, so as to specifically take away the hot air from the corresponding part, that is, the air around the corresponding electrical component can be extracted in time, directly, effectively and quickly dissipating heat.

[0036] In this embodiment, the temperature monitoring module includes a temperature sensor, and the humidity monitoring module includes a humidity sensor. Correspondingly, the temperature sensor and the humidity sensor on each guide rail 21 can be installed on the same slider, which simplifies the structure and can detect the same position simultaneously. The slider is slidably installed with the guide rail 21. During production, the air inlet end of the air extraction pipe can be fixed on the slider. The air extraction pipe is a spiral-wound insulating hose arranged along the linear direction of the guide rail 21, similar to a telephone line, so that it can freely expand and contract as the slider moves, facilitating operation and use.

[0037] As one of another implementation structures, this locking element is a hydraulic rod (not shown in the figure) horizontally installed on the outer surface of the first door panel 1 of the double-leaf cabinet door. This hydraulic rod is in the extended state only when the humidity value monitored by the humidity sensor exceeds the standard, so as to block the second door panel 2, thereby preventing the second door panel 2 and the first door panel 1 from being opened outwards respectively, and realizing the locking function.

[0038] At the same time, in this structural design, its protective suit is placed in a storage box. After the detection element in the protective box detects that the protective suit has been taken away, a controller 15 connected to the detection element drives the hydraulic rod to extend. Here, for whether the protective suit has been taken away, some existing components can be directly used for detection, or even directly use a sensor to detect whether the box is empty, or whether the weight of the storage box becomes lighter to the set value.

[0039] In addition to the implementation methods of the above-described series of ventilation modules and safety protection modules 3, this embodiment also particularly introduces a more superior design structure, that is, as Figure 2 , this locking element includes a balance arm 4 hinged on the first door panel 1. The balance arm 4 can be hinged on the cabinet door on the right side, and an electromagnet 12 is also provided in cooperation. Specifically, insulating frames 6 and magnetic adhesive plates 5 are respectively fixed at both ends of the balance arm 4. The protective suit is placed in the insulating frame 6 on the insulating partition 7. The partition 7 is supported and installed in the insulating frame 6 by a plurality of support springs 8. At the same time, the partition 7 can slide in the insulating frame 6. At the bottom of the partition 7, there is a conductive sleeve 9, which can be a cylindrical structure with a blind hole in the center. The conductive sleeve 9 is slidably sleeved on a conductive column 10, and the conductive column 10 is a cylindrical pin structure. The two are inserted and matched. And when the protective suit is all placed on the partition 7, the conductive sleeve 9 and the conductive column 10 are kept in inserted and contacting with each other, so that the power supply switch 14 of the electromagnet 12 is closed, that is, the two are on the circuit where the power supply switch 14 is located. During use, after the protective suit completely leaves the partition 7, under the pushing action of the support spring 8, the insulating partition 7 separates the conductive sleeve 9 and the conductive column 10 from each other completely, and then the corresponding circuit is disconnected, and the above-mentioned power supply switch 14 is in the off state.

[0040] When the humidity value monitored by the humidity monitoring module exceeds the standard, the controller 15 connected to it drives a working switch 13 of the electromagnet 12 to close. On the premise that the power supply switch 14 is also closed, that is to say, in fact, the above-mentioned electromagnet 12 is controlled by two switches, and only when both are closed can the electromagnet 12 be powered on and work. When working, as Figure 2 , it sucks down the originally upturned magnetic plate 5, so that the insulating frame 6 containing the protective suit rotates and rises to the horizontal position where the balance arm 4 drawn by the dotted line in Figure 2 is located, and is located in front of the second door panel 2 to block it, locking the door panel so that it cannot be opened.

[0041] More specifically, as Figure 2-3 , this balance arm 4 is installed in a protective cabin 17 on the surface of the first door panel 1. The surface of the protective cabin 17 has a viewing hole, which can be rectangular. There is also a sub-door panel 16 installed by hinge, and the sub-door panel 16 can also be a rectangular plate. When the magnetic plate 5 is in the upturned position, the touch screen of a fingerprint recognition module 11 can be seen through the viewing hole. That is, in the normal state of the power distribution cabinet, the cabinet door can be directly opened by fingerprint recognition, or certain permissions can be granted. However, when the balance arm 4 is in the horizontal position, the touch screen is blocked by the magnetic plate 5, and normal process operations cannot be performed. Special attention needs to be paid to the subsequent operations on the power distribution cabinet. Opening the sub-door panel 16 can see the insulating frame 6, and the protective suit in the insulating frame 6 can be directly taken out. After reminding the operator to put it on, effective pre-operation protection can be carried out.

[0042] The above design enables that when in use, when the power distribution cabinet is normal, it can be directly opened and closed through the lock on the cabinet door itself. If the temperature and humidity of the power distribution cabinet are abnormal, the original inclined balance arm 4, because the protective suit is stored in the insulating frame 6, due to its gravity, makes the above-mentioned power supply switch 14 normally closed. At this time, as long as the humidity sensor sends abnormal humidity information to the controller 15, the controller 15 immediately controls the above-mentioned working switch 13 to close, the electromagnet 12 is powered on, generates a strong magnetic effect, sucks down the magnetic plate 5, and makes the balance arm 4 become horizontal. After the staff takes away the protective suit, the above-mentioned power supply switch 14 is disconnected, the electromagnet 12 is immediately powered off, and the strong magnetism disappears. Even if the insulating frame 6 is an empty frame, it is heavier than the end where the magnetic plate 5 is located. Therefore, the insulating frame 6 immediately swings down to a certain position, thus canceling the block on the second door panel 2, and the two door panels can be normally opened outwards. After the operation is completed, the staff throws the protective suit from the opened sub-door panel 16, and it can fall into the insulating frame 6 below, and then the above-mentioned power supply switch 14 resumes the closed state. If the temperature and humidity inside the power distribution cabinet are still abnormal, the balance arm 4 will rotate to the horizontal position again when the safety protection suit is put back, locking the cabinet door.

[0043] In order to achieve the enclosure inside the protective cabin 17 in the normal state, as Figure 4, one end of the balance arm 4 for fixing the insulating frame 6 is an elastic telescopic end. The detailed structure is not shown in the figure, but it can be adaptively designed. After the end of the insulating frame 6 is squeezed, this elastic telescopic end will adaptively retract into the balance arm 4, changing the length of the entire balance arm 4. So that when rotating, the contact between the insulating frame 6 and the left side arm of the protective cabin 17 can be shortened, and then it will pop out again when moving to the opening mentioned later.

[0044] Specifically, on the side of the protective cabin 17 close to the second door panel 2, there is an opening as described above. A sealing plate 1701 is horizontally slidably installed in the opening. As Figure 4 , the sealing plate 1701 is slidably installed through a guide rod 18 penetrating the side wall of the protective cabin 17. The end of the guide rod 18 has a limit block 19. The limit block 19 and the side wall of the protective cabin 17 are connected by a return spring 20. Under normal conditions, the pushing force of the return spring 20 enables the sealing plate 1701 to completely seal the opening. Only when the balance arm 4 rotates to the horizontal position, it is pushed open by the end of the insulating frame 6. Thus, the protective cabin 17 can be closed under normal conditions. After the protective suit is fully put back, when pressing the sealing plate 1701 to reset it into the opening, the insulating frame 6 can be made to retract with the elastic telescopic end. When it retracts into the protective cabin 17, it will automatically swing down due to its own weight.

[0045] Finally, for the specific design of the ventilation module in this embodiment, it can be as Figure 5 shown. The guide rail 21 is a hollow tubular structure. The ventilation module includes a sliding ring cover 22 and an air pipe joint 26 fixed at one end of the sliding ring cover 22. This air pipe joint 26 is actually another specific implementation form of the aforementioned suction part. This air pipe joint 26 is connected to a corresponding hose for conveying air. The sliding ring cover 22 is a closed structure and is made of a heat-conducting material with excellent heat transfer performance, forming an annular cover structure as Figure 6 shown. Inside the internal space of this annular cover structure, there is filled with a thermosensitive gas that is prone to heat expansion. When these gases move to the vicinity of the high-heat-generating components of the power distribution cabinet along with the sliding ring cover 22, they accumulate and expand, generating a large pressure change. On the other hand, the sliding ring cover 22 is axially slidably installed on the guide rail 21 and cannot rotate relative to the guide rail 21, but only moves along a predetermined straight line direction. Inside the sliding ring cover 22, there is a long circular tube 23 arranged radially. A piston plug rod 24 is axially elastically slidably installed in the long circular tube 23 through a pressure-bearing spring. When the thermosensitive gas expands, the generated thrust pushes the piston plug rod 24 downward, and this downward movement will cooperate with the jack 25 mentioned later.

[0046] As a specific implementation structure, as Figure 5, the inner hole of the guide rail 21 is divided into several hole unit segments by partition plates 32 arranged at intervals. Each hole unit segment is provided with a jack 25 for the axial insertion of the piston rod 24. When the sliding ring cover 22 moves axially along the guide rail 21, if it moves to a certain position where the thermosensitive gas expands rapidly due to heat, the piston rod 24 can, as described above, insert into the jack 25 to prevent the sliding ring cover 22 from continuing to move. Once the sliding ring cover 22 stops moving, it triggers the air pump (not shown in the figure) and other devices connected to the corresponding air pipe joint 26 to pump air. The specific triggering implementation method can refer to the prior art and will not be exemplified here as it is very simple. And since the air pipe joint 26 happens to be aligned and connected to an exhaust hole on the guide rail 21 at this time, when the air pump and the like are turned on, the suction pipe connected to the air pipe joint 26 is opened to exhaust outward for timely heat dissipation.

[0047] In order to ensure reliable contact between the air pipe joint 26 and the surface of the guide rail 21 during sliding, as Figure 5 , the air pipe joint 26 and the end face of the sliding ring cover 22 are axially slidably matched through a compression spring 27 and a guide connecting rod 28. The compression spring 27 is always in a compressed state, and under the action of the compression spring 27, the bottom end of the air pipe joint 26 always firmly adheres to the surface of the guide rail 21, so that it can be in sliding and sealing contact with the surface of the guide rail 21. In actual production, the air pipe joint 26 can be arranged on one side of the sliding ring cover 22, provided that the straight line where the air pipe joint 26 and the piston rod 24 are located is not parallel to the axis of the guide rail 21, otherwise it may cause the piston rod 24 to be misinserted into the above-mentioned exhaust hole.

[0048] In order to fully suck away the hot air, for each hole unit segment, as Figure 5 shown, at the position where the piston rod 24 inserts into the jack 25, several ventilation holes 29 are provided on the surface of the guide rail 21 outside both ends of the sliding ring cover 22 to fully suck air. And as Figure 7 , the sliding ring cover 22 is connected to a transmission belt 30. Both ends of the transmission belt 30 are respectively wound around two transmission wheels 31 located at both ends of the guide rail 21. The reciprocating rotation of the transmission wheels 31 drives the sliding cover ring to move back and forth linearly on the guide rail 21 to achieve inspection.

[0049] Those skilled in the art will readily conceive of other embodiments of the present invention after considering the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the present invention and include known common knowledge or conventional technical means in the technical field not disclosed by the present invention. The specification and embodiments are only to be regarded as exemplary, and the true scope and spirit of the present invention are pointed out by the following claims.

[0050] It should be understood that the present invention is not limited to the exact structures that have been described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present invention is only governed by the appended claims.

Claims

1. A power distribution cabinet monitoring system, characterized in that: It includes a temperature monitoring module, a humidity monitoring module, and a ventilation module for ventilating, cooling or drying the power distribution cabinet, and is characterized in that: The ventilation module includes a plurality of air suction parts, and the air in the power distribution cabinet is sucked away from the air suction parts and discharged outside the power distribution cabinet; A plurality of guide rails (21) are also installed in the power distribution cabinet. The temperature monitoring module and the humidity monitoring module are linearly slidably installed on each guide rail (21). Each guide rail (21) is installed between two adjacent rows or columns of electrical components. When the temperature monitoring module moves to a certain position of the guide rail (21) and the collected temperature exceeds the standard, only the air intake part at that position draws out the surrounding hot air. When the temperature returns to below the standard value, the air intake element stops inhaling air. It also comprises a safety protection module (3), the safety protection module (3) being used to be activated when the humidity monitoring module detects that the humidity exceeds the standard; the safety protection module (3) comprises a locking element and a protection suit, the locking element is a conditional constraint lock added to the distribution cabinet on the basis of the original cabinet lock, the protection suit comprises an insulating work suit and / or an insulating tool suit, and when the safety protection module (3) is activated, the locking element can open the cabinet door of the distribution cabinet only after the protection suit is taken out; The locking element comprises a balancing arm (4) hinged on the first door panel (1), and an electromagnet (12), wherein an insulating frame (6) and a magnetic plate (5) are fixed to the two ends of the balancing arm (4), respectively, the insulating frame (6) contains the protective sleeve located on the insulating partition (7), the partition (7) is supported and installed in the insulating frame (6) by a plurality of supporting springs (8), a conductive sleeve (9) is provided at the bottom of the insulating partition (7), the conductive sleeve (9) is slidably fitted on a conductive column (10), and when the protective sleeve is completely placed on the partition (7), the conductive sleeve (9) and the conductive column (10) maintain a socket-fitting contact with each other, so that the power switch (14) of the electromagnet (12) is closed, and after the protective sleeve completely leaves the partition (7), the insulating partition (7) is pushed by the supporting spring (8) so that the conductive sleeve (9) and the conductive column (10) are completely separated from each other; The balancing arm (4) is installed in a protective cabin (17) on the surface of the first door panel (1), and the surface of the protective cabin (17) has a viewing hole and a hinged sub-door panel (16). When the magnetic plate (5) is in a tilted position, a touch screen of a fingerprint recognition module (11) can be seen through the viewing hole. When the balancing arm (4) is in a horizontal position, the touch screen is covered by the magnetic plate (5). When the sub-door panel (16) is opened, the insulating frame (6) can be seen, and the protective suit in the insulating frame (6) can be directly taken out. One end of the balancing arm (4) used to fix the insulating frame (6) is an elastic telescopic end. After the elastic telescopic end is squeezed at the end of the insulating frame (6), it will adaptively retract into the balancing arm (4) to change the length of the entire balancing arm (4); The protective cabin (17) has an opening on one side close to the second door panel (2), and a sealing plate (1701) is horizontally slidably installed in the opening, and the sealing plate (1701) is slidably installed through a guide rod (18) penetrating the side wall of the protective cabin (17), and the end of the guide rod (18) has a limit block (19), and the limit block (19) and the side wall of the protective cabin (17) are connected by a reset spring (20), so that the sealing plate (1701) can completely seal the opening and is pushed open by the end of the insulating frame (6) only when the balance arm (4) is turned to a horizontal position; after the protective suit is completely put back, when the sealing plate (1701) is pressed to reset to the opening, the insulating frame (6) can automatically swing down after the elastic telescopic end retreats; When the humidity value detected by the humidity monitoring module exceeds the standard, the controller (15) connected thereto drives a working switch (13) of the electromagnet (12) to close. On the premise that the power switch (14) is also closed, the electromagnet (12) can be energized and suck down the originally raised magnetic plate (5), so that the insulating frame (6) containing the protective suit can rotate up to a horizontal position and be located in front of the second door panel (2) to block it.

2. A distribution cabinet monitoring system according to claim 1, characterized in that: The air intake portion is an air extraction pipeline, and the air inlets of all the air extraction pipelines are arranged at intervals along the length direction of the guide rail (21), and each air inlet corresponds to an electrical component, so as to timely extract the air around the corresponding electrical component.

3. A distribution cabinet monitoring system according to claim 2, characterized in that: The temperature monitoring module comprises a temperature sensor, and the humidity monitoring module comprises a humidity sensor. The temperature sensor and the humidity sensor on each guide rail (21) are mounted on the same slider, and the slider is mounted in a sliding manner with the guide rail (21). The air inlet end of the air extraction pipeline is fixed on the slider, and the air extraction pipeline is a spirally wound insulating hose arranged in a straight line direction along the guide rail (21) so as to be able to freely expand and contract as the slider moves.

4. A distribution cabinet monitoring system according to claim 1, characterized in that: The guide rail (21) is a hollow tubular structure, and the ventilation module comprises a sliding ring cover (22) and a trachea joint (26) fixed to one end of the sliding ring cover (22). The sliding ring cover (22) is a closed and heat-conducting annular cover structure, and its internal space is filled with heat-sensitive gas that easily expands when heated. The sliding ring cover (22) is axially slidably mounted on the guide rail (21) and cannot rotate relative to the guide rail (21). The interior of the sliding ring cover (22) is provided with a radially arranged long round tube (23). A piston rod (24) is axially elastically slidably mounted in the long round tube (23) via a pressure-bearing spring. The inner hole of the guide rail (21) is divided into a plurality of hole unit sections by partition plates (32) arranged at intervals. Each hole unit section is provided with a plug hole (25) for axial insertion of the piston rod (24). When the sliding ring cover (22) moves axially along the guide rail (21), if the heat-sensitive gas expands due to heat, the piston rod (24) can be inserted into the plug hole (25) to prevent the sliding ring cover (22) from moving further. At this time, the air pipe joint (26) is just aligned and connected with an exhaust hole on the guide rail (21), and the air intake pipe connected to the air pipe joint (26) is opened to exhaust air outward.

5. A distribution cabinet monitoring system according to claim 4, characterized in that: The air pipe joint (26) and the end surface of the sliding ring cover (22) are axially slidably matched through a squeeze spring (27) and a guide rod (28), and under the action of the squeeze spring (27), the bottom end of the air pipe joint (26) is always firmly attached to the surface of the guide rail (21) and is in sliding and sealing contact therewith.

6. A distribution cabinet monitoring system according to claim 4, characterized in that: For each of the hole unit sections, at the position where the piston rod (24) is inserted into the insertion hole (25), a plurality of ventilation holes (29) are provided on the surface of the guide rail (21) outside the two ends of the sliding ring cover (22); the sliding ring cover (22) is connected to a transmission belt (30), and the two ends of the transmission belt (30) are respectively wound around two transmission wheels (31) located at the two ends of the guide rail (21).

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