Low-voltage cabinet with built-in abnormity monitoring and early warning functions

Abstract

The invention discloses a low-voltage cabinet with a built-in abnormity monitoring and early warning function, and relates to the technical field of low-voltage cabinets, the low-voltage cabinet comprises a cabinet body, the side wall of the cabinet body is provided with an air inlet window in a penetrating manner, the inner wall of the cabinet body is provided with a first sliding groove, the top of the inner wall of the first sliding groove is provided with a second sliding groove, and the inner wall of the air inlet window is provided with a heat dissipation mechanism. The inner wall of the second sliding groove is provided with a protection mechanism, so that the cabinet body can be automatically powered off when the high temperature of the equipment is abnormal. According to the low-voltage cabinet with the built-in abnormity monitoring and early warning function, when the temperature in the low-voltage cabinet is too high, output is adjusted through the servo motor according to the temperature, a plate is pushed to extrude, a filter screen drives an air inlet frame to slide outwards, and more air inlet holes are exposed. The design increases the heat dissipation area, optimizes the air flow, improves the heat dissipation efficiency, and facilitates the rapid transmission and dissipation of the heat in the low-voltage cabinet.

Description

Technical Field

[0001] The present invention relates to the technical field of low-voltage cabinets, and particularly to a low-voltage cabinet with a built-in abnormal monitoring and warning function. Background Art

[0002] Low-voltage cabinets are mainly devices used to connect high-voltage or low-voltage cables. Inside the cabinet body, protection devices such as switch circuit breakers are usually installed. The external line enters the main control switch inside the cabinet body and then enters the sub-control switch. Each branch is set according to its needs. In industrial production, computer rooms, hospitals, commercial buildings, data centers and other places, low-voltage cabinets are indispensable facilities.

[0003] Through continuous power distribution and management by the low-voltage cabinet, a large amount of heat will be generated during these operations. During the process, the temperature inside the low-voltage cabinet will gradually rise. At this time, a heat dissipation device needs to be used to cool down. If the heat dissipation degree of the heat dissipation device cannot keep up with the temperature rise inside the low-voltage cabinet, resulting in the components inside the low-voltage cabinet continuously working at high temperatures, it will accelerate the aging process of the low-voltage cabinet, reduce the service life, and at the same time, the maintenance cost will also increase accordingly.

[0004] Therefore, the existing low-voltage cabinets are generally provided with an alarm device, which can manually control the power-off inside the switch cabinet. However, once the power-off is not timely by the operator, it will cause the components inside the low-voltage cabinet to be damaged due to overheating, resulting in a decline in performance. In severe cases, even a failure will occur, which will affect the normal operation of the equipment and even lead to the paralysis of the entire power system. Summary of the Invention

[0005] The purpose of the present invention is to provide a low-voltage cabinet with a built-in abnormal monitoring and warning function to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A low-voltage cabinet with a built-in abnormal monitoring and warning function, including a cabinet body. An air inlet window is penetrated and opened on the side wall of the cabinet body. A first sliding groove is opened on the inner wall of the cabinet body, and a second sliding groove is opened at the top of the inner wall of the first sliding groove;

[0007] A heat dissipation mechanism is arranged on the inner wall of the air inlet window to improve the heat dissipation efficiency and thus achieve rapid cooling when dissipating heat from the equipment;

[0008] A protection mechanism is arranged on the inner wall of the second sliding groove to automatically cut off the power supply to the cabinet body when the equipment is abnormally hot.

[0009] Preferably, the heat dissipation mechanism includes a filter screen, and an air inlet frame is fixedly connected to the side wall of the filter screen. An air inlet hole is penetrated and opened on the outer wall of the air inlet frame. A shutter is fixedly connected to the end of the air inlet frame away from the filter screen, and a fan is fixedly installed inside the air inlet frame. Convex blocks are fixed to both the top and bottom of the filter screen, and a first spring is fixedly connected to the side of the convex block close to the air inlet frame. A circular ring is fixedly connected to the end of the first spring away from the convex block. A resisting plate is fixedly connected to the side of the filter screen away from the air inlet frame, and a resisting block is fixedly connected to the top of the filter screen.

[0010] Preferably, the outer wall of the air inlet frame is slidably connected to the inner wall of the air inlet window, and the end of the circular ring away from the first spring is fixedly connected to the inner wall of the cabinet body.

[0011] Preferably, the protection mechanism includes a sliding rod, and a second spring is fixedly connected to one end of the sliding rod. A connecting rod is fixedly connected to the end of the sliding rod away from the second spring. A connecting block is fixedly connected to the end of the connecting rod away from the sliding rod, and a plurality of clamping rods are fixedly connected to the bottom of the connecting block.

[0012] Preferably, the end of the second spring away from the sliding rod is fixedly connected to the inner wall of the first sliding groove. The outer wall of the sliding rod is slidably connected to the inner wall of the second sliding groove. The outer wall of the resisting block is slidably connected to the inner wall of the first sliding groove. The inclined surface of the resisting block corresponds to the end of the sliding rod.

[0013] Preferably, a circuit board is fixedly installed inside the cabinet body, and a connecting plug is fixedly connected to the side wall of the circuit board. An external connecting wire is fixedly connected to the inner wall of the cabinet body.

[0014] Preferably, a second card slot is fixedly connected to the end of the connecting plug, and a second fixing head is opened on the outer wall of the second card slot. A first fixing head is fixedly connected to the end of the external connecting wire, and a first card slot is fixedly opened on the outer wall of the first fixing head. A third spring is fixedly connected to the end of the first fixing head close to the second card slot, and the end of the third spring away from the first fixing head corresponds to the groove on the side wall of the second card slot. The outer wall of the clamping rod corresponds to the inner wall of the first card slot. The outer wall of the clamping rod corresponds to the inner wall of the second fixing head.

[0015] Preferably, a servo motor is fixedly installed on the bottom of the inner wall of the cabinet body, and a push plate is fixedly connected to the output shaft of the servo motor. The inclined surface on the top of the push plate corresponds to the inclined surface on the bottom of the resisting plate. An air outlet window is opened on the side wall of the cabinet body. A temperature sensor is fixedly installed on the top of the inner wall of the cabinet body.

[0016] Preferably, a signal transmission module and a warning light are fixedly installed on the top of the cabinet body, an instrument is fixedly installed on the side wall of the cabinet body, and a cabinet door is hinged on the side wall of the cabinet body.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] 1. When the temperature inside the low-voltage cabinet is too high, the servo motor can output according to the temperature, so that the push plate squeezes the abutting plate, which will cause the filter screen to drive the air inlet frame to slide outwards. The slid air inlet frame will drive a number of air inlet holes to be exposed outside the cabinet body. Through the design of exposing multiple air inlet holes on the outer wall of the cabinet, the heat dissipation area can be increased, making the contact between air and the air inlet holes more sufficient, which helps to quickly transfer heat. Because the exposed air inlet holes can guide air to flow into the low-voltage cabinet more smoothly, reducing the flow resistance, thus effectively improving the heat dissipation efficiency.

[0019] 2. When the temperature inside the low-voltage cabinet is abnormal, the filter screen drives the abutting block to squeeze the bottom inclined surface of the sliding rod, so that the whole sliding rod slides upwards along the inner wall of the second chute. Then the sliding rod drives the connecting rod to move synchronously, so that the connecting block moves upwards along with the connecting rod, so that the connecting block drives the clamping rod to disengage from the first fixed head and the second clamping groove. Then the second clamping groove is subjected to the elastic force of the third spring, so that the connecting plug is separated from the external wire and bounced off, realizing the function of automatically cutting off the power supply of the circuit board when the temperature is abnormal. For monitoring and warning of too high and abnormal temperature inside the cabinet body, the wire cutting and power outage work can be carried out in time to avoid damage to the components inside the cabinet body and gain maintenance time for maintenance personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is the overall structural schematic diagram of the present invention;

[0021] Figure 2 is the overall structural schematic diagram of the present invention;

[0022] Figure 3 is the partial structural cross-sectional view of the present invention;

[0023] Figure 4 is the structural explosion diagram of the heat dissipation mechanism of the present invention;

[0024] Figure 5 is the structural connection schematic diagram of the protection mechanism of the present invention;

[0025] Figure 6 is the partial structural schematic diagram of the protection mechanism of the present invention.

[0026] In the figure: 1, cabinet body; 2, air inlet window; 3, heat dissipation mechanism; 4, first chute; 5, second chute; 6, protection mechanism; 7, circuit board; 8, connection plug; 9, external wiring; 10, servo motor; 11, push plate; 12, air outlet window; 13, temperature sensor; 14, signal transmission module; 15, warning light; 16, instrument; 17, cabinet door; 301, filter screen; 302, air inlet frame; 303, air inlet hole; 304, louver; 305, fan; 306, convex block; 307, first spring; 308, ring; 309, abutting plate; 310, abutting block; 601, sliding rod; 602, second spring; 603, connecting rod; 604, connecting block; 605, clamping rod; 606, first fixed head; 607, first clamping groove; 608, third spring; 609, second fixed head; 610, second clamping groove. Detailed implementation mode

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] Embodiment 1. Please refer to Figure 1-6 , the present invention provides a low-voltage cabinet with an internal abnormal monitoring and warning function, including a cabinet body 1. An air inlet window 2 is penetrated through the side wall of the cabinet body 1. A first chute 4 is opened on the inner wall of the cabinet body 1, and a second chute 5 is opened at the top of the inner wall of the first chute 4. A circuit board 7 is fixedly installed inside the cabinet body 1, and a connection plug 8 is fixedly connected to the side wall of the circuit board 7. An external wiring 9 is fixedly connected to the inner wall of the cabinet body 1. An air outlet window 12 is opened on the side wall of the cabinet body 1.

[0029] A heat dissipation mechanism 3 is arranged on the inner wall of the air inlet window 2.

[0030] Furthermore, the heat dissipation mechanism 3 includes a filter screen 301, and the side wall of the filter screen 301 is fixedly connected with an air inlet frame 302. An air inlet hole 303 is penetrated and opened on the outer wall of the air inlet frame 302. One end of the air inlet frame 302 away from the filter screen 301 is fixedly connected with a louver 304, and a fan 305 is fixedly installed inside the air inlet frame 302. Convex blocks 306 are fixed to both the top and bottom of the filter screen 301, and a first spring 307 is fixedly connected to the side of the convex block 306 close to the air inlet frame 302. One end of the first spring 307 away from the convex block 306 is fixedly connected with a circular ring 308. A baffle 309 is fixedly connected to the side of the filter screen 301 away from the air inlet frame 302. A baffle block 310 is fixedly connected to the top of the filter screen 301. The outer wall of the air inlet frame 302 is slidably connected to the inner wall of the air inlet window 2, and one end of the circular ring 308 away from the first spring 307 is fixedly connected to the inner wall of the cabinet body 1;

[0031] In this embodiment, when the low-voltage cabinet operates, the temperature is relatively high, and the high temperature is likely to damage the internal electrical equipment, affecting the safety of use. When the internal temperature is relatively high, a heat dissipation device is arranged inside the cabinet body 1 to reduce the accumulation of internal heat. The temperature sensor 13 can be used to monitor the cabinet body 1 in real time during use and record the temperature inside the cabinet body 1 at all times. A temperature sensor 13 is fixedly installed at the top of the inner wall of the cabinet body 1. A signal transmission module 14 and a warning light 15 are fixedly installed on the top of the cabinet body 1. An instrument 16 is fixedly installed on the side wall of the cabinet body 1. A cabinet door 17 is hinged on the side wall of the cabinet body 1. At the same time, the signal transmission module 14 can adjust the servo motor 10 through the temperature data. A servo motor 10 is fixedly installed at the bottom of the inner wall of the cabinet body 1, and the output shaft of the servo motor 10 is fixedly connected with a push plate 11. The top inclined surface of the push plate 11 corresponds to the bottom inclined surface of the baffle 309. When the internal temperature of the cabinet body 1 is normal, the rotation of the fan 305 can bring external air into the cabinet body 1, and then the hot air inside the cabinet body 1 will be discharged through the air outlet window 12, so as to achieve the effect of ventilating and dissipating heat inside the cabinet body 1. During the long-term use of the low-voltage cabinet, when the simple ventilation and heat dissipation effect is not enough to cool the inside of the cabinet body 1, it is necessary to increase the intensity of ventilation and heat dissipation at this time;

[0032] When high temperature is detected, the signal transmission module 14 will drive the servo motor 10, and output different powers to the servo motor 10 according to the temperature data inside the cabinet body 1. The higher the temperature inside the cabinet body 1, the higher the height that the output shaft of the servo motor 10 will rise. Then the servo motor 10 drives the push plate 11 on the output shaft to move upward. Since the bottom of the push plate 11 is located below the abutting block 310, during the upward movement of the push plate 11, the top inclined surface of the push plate 11 contacts the bottom inclined surface of the abutting plate 309. In the subsequent process, the push plate 11 will squeeze the abutting plate 309, and then the abutting plate 309 will drive the filter net 301 to move. Then the filter net 301 will drive the air inlet frame 302 to slide outward along the inner wall of the air inlet window 2. At the same time, the air inlet frame 302 will drive the louvers 304 to move outward synchronously, so as to expand the internal space of the cabinet body 1. The sliding heat dissipation mechanism 3 will protrude from the outer wall of the cabinet body 1, which helps to increase the heat dissipation area and improve the heat dissipation efficiency to a certain extent. This design makes the contact between the heat dissipation holes and the external environment more direct, which is conducive to the rapid transfer of heat. During this process, the filter net 301 will also drive the convex block 306 to move. Then the convex block 306 will squeeze the first spring 307 during its movement. Then after the air inlet frame 302 slides a certain distance along the inner wall of the air inlet window 2, at this time, several air inlet holes 303 will also be separated from the side wall of the cabinet body 1, thus being exposed to the air. By setting multiple air inlet holes 303, while increasing the air inlet area of the air inlet window 2, the internal cavity volume of the cabinet body 1 is increased, and it is then easier to exchange cold air with the outside world, improving the working efficiency of heat dissipation. When the temperature inside the cabinet body 1 is normal, at this time, the output shaft of the servo motor 10 will retract. When the push plate 11 is separated from the abutting plate 309, the air inlet frame 302 will slide along the inner wall of the air inlet window 2 through the rebound of the first spring 307, so that the heat dissipation mechanism 3 automatically performs a reset operation when the temperature is normal;

[0033] Through the above, when the temperature inside the low-voltage cabinet is too high, the servo motor 10 can output according to the temperature, so that the push plate 11 squeezes the abutting plate 309, which will cause the filter net 301 to drive the air inlet frame 302 to slide outward. The sliding air inlet frame 302 will drive several air inlet holes 303 to be exposed outside the cabinet body 1. Through the design of exposing multiple air inlet holes 303 on the outer wall of the cabinet body 1, the heat dissipation area can be increased, making the contact between the air and the air inlet holes 303 more sufficient, which helps to rapidly transfer heat. Because the exposed air inlet holes 303 can guide the air to flow into the low-voltage cabinet more smoothly, reducing the flow resistance, thus effectively improving the heat dissipation efficiency.

[0034] Embodiment 2, on the basis of the above embodiment, a protection mechanism 6 is provided on the inner wall of the second sliding groove 5.

[0035] Further, the protection mechanism 6 includes a sliding rod 601, and one end of the sliding rod 601 is fixedly connected to a second spring 602. The end of the sliding rod 601 away from the second spring 602 is fixedly connected to a connecting rod 603. The end of the connecting rod 603 away from the sliding rod 601 is fixedly connected to a connecting block 604, and several clamping rods 605 are fixedly connected to the bottom of the connecting block 604. The end of the second spring 602 away from the sliding rod 601 is fixedly connected to the inner wall of the first chute 4. The outer wall of the sliding rod 601 is slidably connected to the inner wall of the second chute 5. The outer wall of the abutting block 310 is slidably connected to the inner wall of the first chute 4. The inclined surface of the abutting block 310 corresponds to the end of the sliding rod 601. The end of the connecting plug 8 is fixedly connected to a second card slot 610, and a second fixing head 609 is provided on the outer wall of the second card slot 610. The end of the external wiring 9 is fixedly connected to a first fixing head 606, and a first card slot 607 is fixedly provided on the outer wall of the first fixing head 606. A third spring 608 is fixedly connected to the end of the first fixing head 606 close to the second card slot 610, and the end of the third spring 608 away from the first fixing head 606 corresponds to the groove on the side wall of the second card slot 610. The outer wall of the clamping rod 605 corresponds to the inner wall of the first card slot 607, and the outer wall of the clamping rod 605 corresponds to the inner wall of the second fixing head 609;

[0036] In this embodiment, when high temperature is detected, the heat dissipation mechanism 3 will perform more efficient heat dissipation work. When the temperature sensor 13 detects that the temperature inside the cabinet 1 is abnormal and the heat dissipation efficiency of the heat dissipation mechanism 3 cannot meet the heat that actually needs to be dissipated, the cabinet 1 needs to be shut down for inspection or repair at this time. The warning light 15 can give an alarm to notify the staff to carry out emergency repair work in time. Before that, the circuit board 7 needs to be powered off to prevent the electrical equipment in the low-voltage cabinet from being deformed or damaged due to overheating, making the inspection and maintenance work more difficult;

[0037] Since the abutting block 310 is bolted to the top of the filter screen 301, during the process of the filter screen 301 driving the air inlet frame 302 to slide, the filter screen 301 will also drive the abutting block 310 to move synchronously. When the output shaft of the servo motor 10 reaches the highest height, during the process, the abutting block 310 continues to slide along the inner wall of the first chute 4, and at the same time, it will squeeze the bottom inclined surface of the sliding rod 601, causing the entire sliding rod 601 to slide upward along the inner wall of the second chute 5. Then, the sliding rod 601 will drive the connecting rod 603 to move synchronously, causing the connecting block 604 to move upward following the connecting rod 603. At the same time, multiple clamping rods 605 will slide upward along the inner walls of the corresponding second fixed head 609 and the second card slot 610. After the outer wall of the air inlet frame 302 slides along the inside of the air inlet window 2, the abutting block 310 will drive the sliding rod 601 to complete the sliding along the inner wall of the second chute 5, so that the connecting block 604 drives the clamping rod 605 to disengage from the first fixed head 606 and the second card slot 610. Since the end of the third spring 608 away from the first fixed head 606 is not fixedly connected to the second card slot 610, the second card slot 610 will be subjected to the elastic force of the third spring 608, thereby driving the connecting plug 8 to separate from the external wire 9 and then being bounced off, realizing the function of automatically powering off the circuit board 7 when the temperature is abnormal, ensuring the safe use of the low-voltage cabinet and meeting the actual use requirements.

[0038] Through the above, when the temperature inside the low-voltage cabinet is abnormal, the filter screen 301 drives the abutting block 310 to squeeze the bottom inclined surface of the sliding rod 601, causing the entire sliding rod 601 to slide upward along the inner wall of the second chute 5. Then, the sliding rod 601 will drive the connecting rod 603 to move synchronously, causing the connecting block 604 to move upward following the connecting rod 603, so that the connecting block 604 drives the clamping rod 605 to disengage from the first fixed head 606 and the second card slot 610. Then, the second card slot 610 will be subjected to the elastic force of the third spring 608, thereby driving the connecting plug 8 to separate from the external wire 9 and then being bounced off, realizing the function of automatically powering off the circuit board 7 when the temperature anomaly is detected, monitoring and warning when the temperature inside the cabinet 1 is too high and abnormal, being able to perform the wire-breaking and power-off work in time, avoiding damage to the components inside the cabinet 1, and buying maintenance time for the maintenance personnel.

[0039] Working principle: When the temperature inside the cabinet 1 is normal, the rotation of the fan 305 can bring external air into the cabinet 1, and then the hot air inside the cabinet 1 will be discharged through the air outlet window 12, thereby achieving the function of ventilating and cooling the inside of the cabinet 1. During the long-term use of the low-voltage cabinet, when the simple ventilation and cooling effect is insufficient to cool the inside of the cabinet 1, it is necessary to increase the intensity of ventilation and cooling at this time;

[0040] When high temperature is detected, the signal transmission module 14 will drive the servo motor 10 and output different powers to the servo motor 10 according to the temperature data inside the cabinet body 1. The higher the temperature inside the cabinet body 1, the higher the height that the output shaft of the servo motor 10 will rise. Then, the servo motor 10 drives the push plate 11 on the output shaft to move upward. Since the bottom of the push plate 11 is located below the abutting block 310, during the upward movement of the push plate 11, the top inclined surface of the push plate 11 contacts the bottom inclined surface of the abutting plate 309. In the subsequent process, the push plate 11 will squeeze the abutting plate 309, and then the abutting plate 309 will drive the filter net 301 to move. Then, the filter net 301 will drive the air inlet frame 302 to slide outward along the inner wall of the air inlet window 2. At the same time, the air inlet frame 302 will drive the louvers 304 to move outward synchronously, thereby expanding the internal space of the cabinet body 1. The sliding heat dissipation mechanism 3 will protrude from the outer wall of the cabinet body 1, which helps to increase the heat dissipation area and improve the heat dissipation efficiency to a certain extent. This design makes the contact between the heat dissipation holes and the external environment more direct, which is conducive to the rapid transfer of heat. During this process, the filter net 301 will also drive the convex block 306 to move. Then, during the movement of the convex block 306, it will squeeze the first spring 307. Then, after the air inlet frame 302 slides a certain distance along the inner wall of the air inlet window 2, at this time, several air inlet holes 303 will also be separated from the side wall of the cabinet body 1, thus exposing to the air. By setting multiple air inlet holes 303, while increasing the air inlet area of the air inlet window 2, the internal cavity volume of the cabinet body 1 is increased, and it is easier to exchange cold air with the outside world, improving the working efficiency of heat dissipation. When the temperature inside the cabinet body 1 is normal, at this time, the output shaft of the servo motor 10 will retract. When the push plate 11 is separated from the abutting plate 309, the air inlet frame 302 will slide along the inner wall of the air inlet window 2 through the rebound of the first spring 307, so that the heat dissipation mechanism 3 automatically resets when the temperature is normal. By increasing the heat dissipation area, the contact between the air and the air inlet holes 303 is more sufficient, which helps to quickly transfer heat, thus effectively improving the heat dissipation efficiency;

[0041] When the temperature inside the low-voltage cabinet is abnormal, the filter net 301 drives the abutting block 310 to squeeze the bottom inclined surface of the sliding rod 601, so that the whole sliding rod 601 will slide upward along the inner wall of the second chute 5. Then, the sliding rod 601 will drive the connecting rod 603 to move synchronously, so that the connecting block 604 will move upward following the connecting rod 603, so that the connecting block 604 drives the clamping rod 605 to disengage from the first fixed head 606 and the second clamping groove 610. Then, the second clamping groove 610 will be subjected to the elastic force of the third spring 608, so as to drive the connecting plug 8 to separate from the external wiring 9 and then be bounced off, realizing the function of automatically cutting off the power supply of the circuit board 7 when the temperature abnormality is detected. For the abnormal high temperature inside the cabinet body 1, it can be monitored and warned, and the wire cutting and power outage work can be carried out in time to avoid damage to the internal devices of the cabinet body 1 and gain maintenance time for the maintenance personnel.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill 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 present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A low-voltage cabinet with built-in abnormal monitoring and early warning function, comprising a cabinet body (1), characterized in that: An air inlet window (2) is provided through the side wall of the cabinet (1), a first slide groove (4) is provided on the inner wall of the cabinet (1), and a second slide groove (5) is provided on the top of the inner wall of the first slide groove (4); The inner wall of the air inlet window (2) is provided with a heat dissipation mechanism (3) to achieve rapid cooling; The inner wall of the second chute (5) is provided with a protection mechanism (6) to automatically cut off the power supply to the cabinet (1) when the temperature of the equipment is abnormally high; The heat dissipation mechanism (3) comprises a filter (301), a top of the filter (301) is fixedly connected with a stop block (310), an outer wall of the stop block (310) is slidably connected to an inner wall of the first slide groove (4), and the protective mechanism (6) comprises a sliding rod (601), an inclined surface of the stop block (310) corresponds to an end of the sliding rod (601).

2. A low-voltage cabinet with built-in abnormal monitoring and early warning function according to claim 1, characterized in that: The side wall of the filter (301) is fixedly connected to an air inlet frame (302), an air inlet hole (303) is formed through the outer wall of the air inlet frame (302), a shutter (304) is fixedly connected to one end of the air inlet frame (302) away from the filter (301), and a fan (305) is fixedly installed inside the air inlet frame (302), a protrusion (306) is fixedly connected to the top and bottom of the filter (301), and a first spring (307) is fixedly connected to the side of the protrusion (306) close to the air inlet frame (302), a ring (308) is fixedly connected to the end of the first spring (307) away from the protrusion (306), and a stop plate (309) is fixedly connected to the side of the filter (301) away from the air inlet frame (302).

3. A low voltage cabinet with built-in abnormal monitoring and early warning function according to claim 2, characterized in that: The outer wall of the air inlet frame (302) is slidably connected to the inner wall of the air inlet window (2), and the end of the circular ring (308) away from the first spring (307) is fixedly connected to the inner wall of the cabinet (1).

4. A low voltage cabinet with built-in abnormal monitoring and early warning function according to claim 3, characterized in that: One end of the sliding rod (601) is fixedly connected to a second spring (602), one end of the sliding rod (601) away from the second spring (602) is fixedly connected to a connecting rod (603), one end of the connecting rod (603) away from the sliding rod (601) is fixedly connected to a connecting block (604), and a plurality of clamping rods (605) are fixedly connected to the bottom of the connecting block (604).

5. A low voltage cabinet with built-in abnormal monitoring and early warning function according to claim 4, characterized in that: One end of the second spring (602) away from the slide rod (601) is fixedly connected to the inner wall of the first slide groove (4), and the outer wall of the slide rod (601) is slidably connected to the inner wall of the second slide groove (5).

6. The low-voltage cabinet with built-in abnormal monitoring and early warning function according to claim 4 is characterized in that: A circuit board (7) is fixedly installed inside the cabinet (1), a connecting plug (8) is fixedly connected to the side wall of the circuit board (7), and an external wire (9) is fixedly connected to the inner wall of the cabinet (1).

7. A low voltage cabinet with built-in abnormal monitoring and early warning function according to claim 6, characterized in that: The end of the connecting plug (8) is fixedly connected to a second slot (610), and the outer wall of the second slot (610) is provided with a second fixed head (609); the end of the external wire (9) is fixedly connected to a first fixed head (606), and the outer wall of the first fixed head (606) is fixedly provided with a first slot (607); the end of the first fixed head (606) close to the second slot (610) is fixedly connected to a third spring (608), and the end of the third spring (608) away from the first fixed head (606) corresponds to the side wall groove of the second slot (610); the outer wall of the clamping rod (605) corresponds to the inner wall of the first slot (607), and the outer wall of the clamping rod (605) corresponds to the inner wall of the second fixed head (609).

8. The low-voltage cabinet with built-in abnormal monitoring and early warning function according to claim 2 is characterized in that: A servo motor (10) is fixedly mounted on the bottom of the inner wall of the cabinet (1), and the output shaft of the servo motor (10) is fixedly connected to a push plate (11), the top inclined surface of the push plate (11) corresponds to the bottom inclined surface of the abutment plate (309), an air outlet window (12) is provided on the side wall of the cabinet (1), and a temperature sensor (13) is fixedly mounted on the top of the inner wall of the cabinet (1).

9. The low-voltage cabinet with built-in abnormal monitoring and early warning function according to claim 1 is characterized in that: A signal transmission module (14) and a warning light (15) are fixedly mounted on the top of the cabinet (1), an instrument (16) is fixedly mounted on the side wall of the cabinet (1), and a cabinet door (17) is hingedly connected to the side wall of the cabinet (1).

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