A fast-breaking electrical fire protection device

Abstract

The application discloses a kind of quick breaking electrical fire protection device, it is related to electrical fire protection device field, including fireproof shell and installation backplate, the bottom of fireproof shell is provided with dehumidification mechanism.This kind of quick breaking electrical fire protection device, by dehumidification mechanism can carry out dehumidification processing to equipment inside, blow heat dissipation fan can blow, can directly blow the air in the inner chamber of fireproof shell downwards, then cooperate with moisture fan, so that the humid air in equipment inside can be quickly sucked and removed, subsequently when humid air is sucked into the inner chamber of shell, will be sucked and removed with the dust blown off, effectively avoid that dust can be accumulated in the inside of fireproof shell, will not cause influence to electrical element, and by filter screen still can directly filter small dust, impurity etc., to effectively guarantee the dry degree of equipment inside, can also avoid to accumulate a large amount of dust, improve equipment service life.

Description

Technical Field

[0001] This invention belongs to the technical field of electrical fire protection devices, and particularly relates to a fast-disconnecting electrical fire protection device. Background Technology

[0002] A rapid-disconnect electrical fire protection device is an electrical protection device that can quickly detect electrical faults and cut off the power supply to prevent fires. Its main principle is to use the principles of electricity, heat, and mechanics to protect and ensure the safety of electrical equipment through the interaction of circuits and control systems. Among them, the residual current device (RCD) is a widely used type of fire protection device. Its working principle is based on the differential current measurement principle. By detecting the total current in the circuit and the current on the two phase lines of the loop, it can determine whether there is a leakage current. If a leakage current is detected in the circuit, the RCD will quickly cut off the power supply to avoid electric shock accidents and electrical fires.

[0003] Current electrical fire protection devices, when in humid environments or potentially exposed to water, may experience short circuits and electric shock risks if their internal components are not dehumidified. This can lead to equipment damage and prevent effective testing. Summary of the Invention

[0004] The technical problem this invention aims to solve is that it cannot effectively ensure that the inside of the electrical fire protection device remains dry, and it cannot effectively prevent the generation of water vapor inside the device in a humid environment, which may lead to short circuits and electric shock risks.

[0005] To achieve the above objectives, the specific technical solution of the present invention is as follows: A fast-disconnecting electrical fire protection device includes a fireproof shell and a mounting back plate. A dehumidification mechanism is provided at the bottom of the fireproof shell. An inner shell is fixedly installed around the front side of the mounting back plate. The fireproof shell is fitted onto the outer surface of the inner shell. Electrical components are fixedly installed on the front side of the mounting back plate. An air inlet is provided at the bottom of the fireproof shell. A wire connection mechanism is provided near the bottom of the front side of the mounting back plate. A front shell plate is installed on the front of the fireproof shell by a screw thread.

[0006] A sensor control unit is fixedly installed at the center of the top of the fireproof housing's inner cavity. A humidity sensor and a temperature sensor are fixedly installed on the left and right sides of the bottom of the sensor control unit, respectively. An audible and visual alarm is fixedly installed at the center of the top of the fireproof housing. The input terminal of the sensor control unit is electrically connected to a power management module, and the output terminal of the sensor control unit is electrically connected to a sensor interface module. The output terminal of the humidity sensor is electrically connected to a temperature sensor, and the output terminal of the temperature sensor is electrically connected to the input terminal of the sensor control unit. The output terminal of the sensor interface module is electrically connected to a data acquisition module, and the output terminal of the data acquisition module is electrically connected to a data processing and analysis module. The output terminal of the data processing and analysis module is electrically connected to a control algorithm module, and the output terminal of the control algorithm module is electrically connected to a communication interface module. The output terminal of the communication interface module is electrically connected to the input of the audible and visual alarm.

[0007] As a further embodiment of the present invention, the dehumidification mechanism includes a housing, a ventilation mesh plate, an air inlet channel, a top plate, a moisture-absorbing fan, an exhaust port, and a filter screen. The housing is placed inside the cavity of the dehumidification mechanism. The moisture-absorbing fan is fixedly installed on one side of the cavity of the housing. A ventilation mesh plate is provided on the other side of the cavity of the housing. The filter screen is fixedly installed inside the ventilation mesh plate. The top plate is fixedly installed on the top of the housing. The air inlet channel is opened at the top of the top plate. The exhaust port is opened on the left side of the dehumidification mechanism.

[0008] As a further embodiment of the present invention, limit guides are horizontally fixedly installed on both the front and rear sides of the bottom of the dehumidification mechanism's inner cavity, the housing is clamped inside the limit guides, and a side door is provided on the right side of the dehumidification mechanism.

[0009] As a further embodiment of the present invention, a retaining strip is fixedly installed around the top of the dehumidification mechanism, and an mounting bracket is fixedly installed around the bottom of the fireproof shell. The mounting bracket has a slot at the bottom, and the retaining strip is fitted into the inner cavity of the slot and fixed by adhesive glue and bolts.

[0010] As a further embodiment of the present invention, a splash guard is fixedly installed on the left side of the inner cavity of the fireproof shell, and a heat dissipation groove is opened on the left side of the surface of the splash guard located on the left side of the fireproof shell, and a dust collection groove is provided at the bottom of the inner cavity of the splash guard.

[0011] As a further embodiment of the present invention, the line connection mechanism includes a connector, a moisture-absorbing partition, a fixing block, a through hole, and a limiting sleeve. The connector is fixedly installed on the rear side of the inner cavity of the line connection mechanism. There are two fixing blocks, which are respectively fixedly installed on both sides of the inner cavity of the line connection mechanism. The moisture-absorbing partition is fixedly installed on the inner side of the two fixing blocks. The through hole is opened laterally on the surface of the moisture-absorbing partition. The limiting sleeve is sleeved around the inner cavity of the through hole.

[0012] As a further embodiment of the present invention, threaded seats are fixedly installed around the front side of the inner cavity of the fireproof shell, a limit rod is fixedly installed on the rear side of the threaded seats, and a cooling fan is fixedly installed on the top of the inner cavity of the fireproof shell.

[0013] A fast-disconnecting electrical fire protection device, the usage method of which is as follows:

[0014] S1. First, the cable can be threaded into the dehumidification mechanism through the exhaust vent. After passing around the housing to its top, it can be directly passed through the air inlet slot and connected to the cable connection mechanism. The cable can be directly passed through the through hole and electrically connected to the connector. The limiting sleeve can limit the cable's movement and can also wrap the cable surface well. The moisture-absorbing baffle can also adsorb and dry the humid air near the inner cavity of the cable connection mechanism.

[0015] S2. Then place the entire dehumidification unit at the bottom of the fireproof shell, insert the clip into the inner cavity of the slot, and install and fix it with adhesive and bolts. The adhesive can ensure good sealing at the connection.

[0016] S3. When dehumidification of the equipment is required, the dehumidification mechanism can be turned on by the controller. At this time, the dehumidifying fan can perform the suction work, and the blowing and cooling fan located at the top of the fireproof shell cavity can blow air. It can directly blow the air inside the fireproof shell cavity downwards, and then cooperate with the dehumidifying fan to quickly remove the humid air inside the equipment.

[0017] S4. Subsequently, when humid air is drawn into the inner cavity of the housing, the blown-off dust will also be sucked out. Fine dust and impurities can also be filtered through the filter screen, ensuring the dryness of the equipment and preventing the accumulation of a large amount of dust.

[0018] S5. The humidity and temperature sensors are responsible for monitoring the humidity and temperature inside the fireproof enclosure. When the humidity or temperature exceeds the preset range, the sensor control unit will receive the corresponding signal and process and analyze the data through data acquisition, processing and analysis, and control algorithm module. When an abnormal situation is detected, the sensor control unit will trigger the control algorithm module to generate the corresponding control command. The communication interface module will transmit the control command to the audible and visual alarm to trigger the alarm function of the audible and visual alarm and notify people of the possible danger.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] 1. This rapid-disconnect electrical fire protection device utilizes a dehumidification mechanism to dehumidify the internal environment of the equipment. A cooling fan blows air downwards from the fireproof enclosure, working in conjunction with a dehumidifying fan to quickly remove humid air. This process also removes blown-down dust, effectively preventing dust accumulation and its potential impact on electrical components. A filter screen further filters out fine dust and impurities, ensuring the equipment remains dry and extending its lifespan. Through the coordinated operation of components such as an audible and visual alarm, a sensor control unit, a humidity sensor, and a temperature sensor, the sensor control unit can promptly issue an alarm when abnormal humidity or temperature occurs inside the fireproof enclosure, prompting users to take necessary precautions. This achieves both monitoring and fire protection of the electrical protection device's internal components.

[0021] 2. This fast-disconnecting electrical fire protection device can limit the operation of the wire body through the limiting sleeve. The limiting sleeve can also better wrap the surface of the wire body. The moisture-absorbing baffle can also absorb and dry the humid air near the inner cavity of the wire body connection mechanism. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure provided in an embodiment of the present invention;

[0023] Figure 2 This is a partial sectional view of the fireproof outer shell structure provided in an embodiment of the present invention;

[0024] Figure 3 This is a partial cross-sectional view of the dehumidification mechanism structure provided in an embodiment of the present invention;

[0025] Figure 4 This is a partial exploded view of the fireproof outer shell structure provided in an embodiment of the present invention;

[0026] Figure 5 This is a partial cross-sectional view of the line connection mechanism structure provided in an embodiment of the present invention;

[0027] Figure 6 This is a system schematic diagram provided in an embodiment of the present invention.

[0028] Explanation of markings in the diagram: 1. Fireproof outer shell; 2. Mounting back panel; 3. Dehumidification mechanism; 301. Shell; 302. Ventilation mesh panel; 303. Air inlet duct; 304. Top plate; 305. Dehumidifying fan; 306. Exhaust vent; 307. Filter screen; 4. Front shell panel; 5. Line connection mechanism; 501. Connector; 502. Dehumidifying partition; 503. Fixing block; 504. Through hole; 505. Limiting sleeve 6. Side-opening door; 7. Electrical components; 8. Splash guard; 9. Heat dissipation slot; 10. Dust collection trough; 11. Inner shell; 12. Air inlet; 13. Limiting guide bar; 14. Air blowing and cooling fan; 15. Threaded seat; 16. Limiting rod; 17. Locking strip; 18. Locking slot; 19. Mounting bracket; 20. Audible and visual alarm; 21. Sensor control unit; 22. Humidity sensor; 23. Temperature sensor. Detailed Implementation

[0029] To further understand the invention's content, features, and effects, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0030] The structure of the present invention will now be described in detail with reference to the accompanying drawings.

[0031] like Figures 1 to 5 As shown, the present invention provides a quick-disconnect electrical fire protection device, including a fireproof shell 1 and a mounting back plate 2. A dehumidification mechanism 3 is provided at the bottom of the fireproof shell 1. An inner shell 11 is fixedly installed around the front side of the mounting back plate 2. The fireproof shell 1 is fitted onto the outer surface of the inner shell 11. An electrical component 7 is fixedly installed on the front side of the mounting back plate 2. An air inlet slot 12 is provided at the bottom of the fireproof shell 1. A wire connection mechanism 5 is provided near the bottom of the front side of the mounting back plate 2. A front shell plate 4 is installed on the front of the fireproof shell 1 by means of a screw thread.

[0032] A sensor control unit 21 is fixedly installed at the center of the top of the fireproof housing 1. A humidity sensor 22 and a temperature sensor 23 are fixedly installed on the left and right sides of the bottom of the sensor control unit 21, respectively. An audible and visual alarm 20 is fixedly installed at the center of the top of the fireproof housing 1. A power management module is electrically connected to the input terminal of the sensor control unit 21, and a sensor interface module is electrically connected to the output terminal of the sensor control unit 21. The output terminal of the humidity sensor 22 is electrically connected to the temperature sensor 23. The output terminal of the temperature sensor 23 is electrically connected to the input terminal of the sensor control unit 21. A data acquisition module is electrically connected to the output terminal of the sensor interface module. A data processing and analysis module is electrically connected to the output terminal of the data acquisition module. A control algorithm module is electrically connected to the output terminal of the data processing and analysis module. A communication interface module is electrically connected to the output terminal of the control algorithm module. The output terminal of the communication interface module is electrically connected to the input of the audible and visual alarm 20.

[0033] refer to Figure 1 , Figure 3 and Figure 4 The dehumidification mechanism 3 includes a housing 301, a ventilation mesh plate 302, an air inlet channel 303, a top plate 304, a moisture-absorbing fan 305, an exhaust port 306, and a filter screen 307. The housing 301 is placed inside the cavity of the dehumidification mechanism 3. The moisture-absorbing fan 305 is fixedly installed on one side of the cavity of the housing 301. The ventilation mesh plate 302 is provided on the other side of the cavity of the housing 301. The filter screen 307 is fixedly installed inside the cavity of the ventilation mesh plate 302. The top plate 304 is fixedly installed on the top of the housing 301. The air inlet channel 303 is formed in the top plate 304. At the top, the exhaust vent 306 is located on the left side of the dehumidification mechanism 3. Limiting guide strips 13 are horizontally fixedly installed on both the front and rear sides of the bottom of the inner cavity of the dehumidification mechanism 3. The housing 301 is clamped inside the limiting guide strips 13. A side door 6 is provided on the right side of the dehumidification mechanism 3. The top of the dehumidification mechanism 3 is fixedly installed with clips 17 around the perimeter. The bottom of the fireproof housing 1 is fixedly installed with mounting brackets 19 around the perimeter. The bottom of the mounting brackets 19 has a slot 18. The clips 17 are clamped and installed in the inner cavity of the slot 18 and are fixed by adhesive glue and bolts.

[0034] The above solution allows for dehumidification of the equipment's interior via dehumidification mechanism 3. Specifically, dehumidification mechanism 3 can be activated via the controller. At this time, the dehumidifying fan 305 performs suction, while the cooling fan 14 located at the top of the fireproof housing 1 blows air downwards. This, combined with the dehumidifying fan 305, quickly removes humid air from the equipment's interior. As the humid air is drawn into the housing 301, it also removes any blown-off dust, effectively preventing dust accumulation inside the fireproof housing 1 and thus avoiding damage to electrical components 7. Furthermore, the filter screen 307 directly filters out fine dust and impurities, effectively ensuring the dryness of the equipment's interior and preventing the accumulation of large amounts of dust, thereby extending the equipment's lifespan.

[0035] refer to Figure 1 , Figure 2 , Figure 3 and Figure 5 A splash guard 8 is fixedly installed on the left side of the inner cavity of the fireproof shell 1. A heat dissipation slot 9 is opened on the left side of the surface of the splash guard 8 located on the left side of the fireproof shell 1. A dust collection slot 10 is provided at the bottom of the inner cavity of the splash guard 8. The line connection mechanism 5 includes a connector 501, a moisture-absorbing partition 502, a fixing block 503, a through hole 504, and a limiting sleeve 505. The connector 501 is fixedly installed on the rear side of the inner cavity of the line connection mechanism 5. There are two fixing blocks 503, which are fixedly installed on both sides of the inner cavity of the line connection mechanism 5. The moisture-absorbing partition 502 is fixedly installed on the inner side of the two fixing blocks 503. The through hole 504 is opened horizontally on the surface of the moisture-absorbing partition 502. The limiting sleeve 505 is sleeved around the inner cavity of the through hole 504. Threaded seats 15 are fixedly installed around the front side of the inner cavity of the fireproof shell 1. A limiting rod 16 is fixedly installed on the rear side of the threaded seat 15. A blower cooling fan 14 is fixedly installed on the top of the inner cavity of the fireproof shell 1.

[0036] Using the above solution: the heat dissipation slot 9 can realize the overall heat dissipation and ventilation of the equipment, and the splash guard 8 can effectively prevent water from directly entering the interior of the fireproof shell 1 when in contact with water. The dust collection slot 10 can also partially block the dust in the air entering the interior of the fireproof shell 1 through the heat dissipation slot 9. The cable can be passed through the exhaust port 306 into the dehumidification mechanism 3, and after passing around the shell 301 to its top, it can directly pass through the air inlet slot 12 and connect to the cable connection mechanism 5. The cable can directly pass through the through hole 504 and make an electrical connection with the connector 501. The limiting sleeve 505 can limit the cable and can also wrap the surface of the cable well. The moisture absorption baffle 502 can also absorb and dry the humid air near the inner cavity of the cable connection mechanism 5.

[0037] Working principle of the invention:

[0038] In use, the cable is first threaded into the dehumidification mechanism 3 through the exhaust vent 306, then passes over the housing 301 and above it, before directly passing through the air inlet 12 and connecting to the cable connection mechanism 5. The cable can directly pass through the through hole 504 and electrically connect to the connector 501. The limiting sleeve 505 can limit the cable's movement and also effectively wrap around the cable surface. The moisture-absorbing baffle 502 can absorb and dry the humid air near the inner cavity of the cable connection mechanism 5. Finally, the entire dehumidification mechanism 3 is placed... At the bottom of the fireproof housing 1, the retaining strip 17 is secured in the inner cavity of the retaining groove 18 using adhesive and bolts. The adhesive ensures a good seal at the connection. When dehumidification is required, the dehumidification mechanism 3 can be activated via the controller. At this time, the dehumidifying fan 305 performs suction, while the cooling fan 14 located at the top of the inner cavity of the fireproof housing 1 blows air downwards, directly directing the air inside the fireproof housing 1 downwards. Combined with the dehumidifying fan 305, this quickly dehumidifies the interior of the equipment. Moist air is drawn in, and when this moist air is drawn into the inner cavity of the housing 301, it also removes the blown-off dust. The filter screen 307 further filters out fine dust and impurities, ensuring the dryness of the equipment's interior and preventing the accumulation of large amounts of dust. The heat dissipation slot 9 enables overall heat dissipation and ventilation of the equipment, and the splash guard 8 prevents water from directly entering the interior of the fireproof housing 1 when in contact with it. The dust collection trough 10 can also partially block dust in the air entering the interior of the fireproof housing 1 through the heat dissipation slot 9. The humidity sensor 22 and temperature sensor 23 monitor the humidity and temperature inside the fireproof housing 1. When the humidity or temperature exceeds the preset range, the sensor control unit 21 will receive the corresponding signal and process and analyze the data through data acquisition, processing and analysis, and the control algorithm module. When an abnormal situation is detected, the sensor control unit 21 will trigger the control algorithm module to generate corresponding control commands. The communication interface module will transmit the control commands to the audible and visual alarm 20 to trigger the alarm function of the audible and visual alarm 20 and notify people of potential dangers.

[0039] In summary: This rapid-disconnect electrical fire protection device can dehumidify the inside of the equipment through the dehumidification mechanism 3, and the blowing and cooling fan 14 can blow air directly downwards from the inner cavity of the fireproof housing 1. Combined with the dehumidifying fan 305, it can quickly remove humid air from inside the equipment. When the humid air is drawn into the inner cavity of the housing 301, it also removes the blown-down dust, effectively preventing dust accumulation inside the fireproof housing 1 and avoiding damage to the electrical components 7. Furthermore, the filter screen 307 can directly filter out fine dust and impurities, effectively ensuring the dryness of the equipment's interior. To avoid the accumulation of large amounts of dust and improve the service life of the equipment, the sensor control unit 21, humidity sensor 22, and temperature sensor 23 work together in coordination. When abnormal humidity or temperature occurs inside the fireproof housing 1, the sensor control unit 21 can issue an alarm in time to remind people to take necessary precautions. This achieves monitoring and fire prevention of the electrical protector's interior. It solves the problem that current electrical fire protectors, when in humid environments or potentially exposed to water, cannot be dehumidified, which can lead to short circuits and electric shock risks, damage to the equipment, and ineffective detection.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

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

Claims

1. A fast-disconnecting electrical fire protection device, comprising a fireproof housing (1) and a mounting backplate (2), characterized in that: The fireproof shell (1) is provided with a dehumidification mechanism (3) at the bottom. An inner shell sleeve (11) is fixedly installed around the front side of the mounting back plate (2). The fireproof shell (1) is fitted onto the outer surface of the inner shell sleeve (11). An electrical component (7) is fixedly installed on the front side of the mounting back plate (2). An air inlet slot (12) is opened at the bottom of the fireproof shell (1). A wire connection mechanism (5) is provided on the front side of the mounting back plate (2) near the bottom. A front shell plate (4) is installed on the front of the fireproof shell (1) by a screw thread. A sensor control unit (21) is fixedly installed at the center of the top of the fireproof housing (1). A humidity sensor (22) and a temperature sensor (23) are fixedly installed on the left and right sides of the bottom of the sensor control unit (21), respectively. An audible and visual alarm (20) is fixedly installed at the center of the top of the fireproof housing (1). A power management module is electrically connected to the input end of the sensor control unit (21). A sensor interface module is electrically connected to the output end of the sensor control unit (21). A temperature sensor (23) is electrically connected to the output end of the humidity sensor (22). The output end of the temperature sensor (23) is electrically connected to the input end of the sensor control unit (21). A data acquisition module is electrically connected to the output end of the sensor interface module. A data processing and analysis module is electrically connected to the output end of the data acquisition module. A control algorithm module is electrically connected to the output end of the data processing and analysis module. A communication interface module is electrically connected to the output end of the control algorithm module. The output end of the communication interface module is electrically connected to the input of the audible and visual alarm (20). The dehumidification mechanism (3) includes a housing (301), a ventilation mesh plate (302), an air inlet channel (303), a top plate (304), a moisture-absorbing fan (305), an exhaust port (306), and a filter screen (307). The housing (301) is placed in the inner cavity of the dehumidification mechanism (3). The moisture-absorbing fan (305) is fixedly installed on one side of the inner cavity of the housing (301). The ventilation mesh plate (302) is provided on the other side of the inner cavity of the housing (301). The filter screen (307) is fixedly installed in the inner cavity of the ventilation mesh plate (302). The top plate (304) is fixedly installed on the top of the housing (301). The air inlet channel (303) is opened on the top of the top plate (304). The exhaust port (306) is opened on the left side of the dehumidification mechanism (3). The line connection mechanism (5) includes a connector (501), a moisture-absorbing partition (502), a fixing block (503), a through hole (504), and a limiting sleeve (505). The connector (501) is fixedly installed on the rear side of the inner cavity of the line connection mechanism (5). There are two fixing blocks (503) and they are fixedly installed on both sides of the inner cavity of the line connection mechanism (5). The moisture-absorbing partition (502) is fixedly installed on the inner side of the two fixing blocks (503). The through hole (504) is opened laterally on the surface of the moisture-absorbing partition (502). The limiting sleeve (505) is sleeved around the inner cavity of the through hole (504). A threaded seat (15) is fixedly installed around the front side of the inner cavity of the fireproof shell (1), a limit rod (16) is fixedly installed on the rear side of the threaded seat (15), and a blower cooling fan (14) is fixedly installed on the top of the inner cavity of the fireproof shell (1).

2. The fast-disconnecting electrical fire protection device according to claim 1, characterized in that: Limiting guides (13) are horizontally fixedly installed on both the front and rear sides of the bottom of the dehumidification mechanism (3). The housing (301) is locked inside the limiting guides (13). A side door (6) is provided on the right side of the dehumidification mechanism (3).

3. The fast-disconnecting electrical fire protection device according to claim 1, characterized in that: The dehumidification mechanism (3) has a locking strip (17) fixedly installed around the top, and the fireproof shell (1) has a mounting bracket (19) fixedly installed around the bottom. The mounting bracket (19) has a slot (18) at the bottom. The locking strip (17) is installed in the inner cavity of the slot (18) and is fixed by adhesive glue and bolts.

4. The fast-disconnecting electrical fire protection device according to claim 1, characterized in that: A splash guard (8) is fixedly installed on the left side of the inner cavity of the fireproof shell (1). A heat dissipation slot (9) is opened on the left side of the splash guard (8) and on the left side of the fireproof shell (1). A dust collection slot (10) is provided at the bottom of the inner cavity of the splash guard (8).

5. The fast-disconnecting electrical fire protection device according to claim 1, characterized in that: Its usage method is as follows: S1. First, the wire is inserted into the dehumidification mechanism (3) through the exhaust port (306), passes around the housing (301) to its top, and then directly passes through the air inlet slot (12) and connects to the wire connection mechanism (5). The wire passes directly through the through hole (504) and connects to the connector (501) electrically. The limiting sleeve (505) limits the wire. The limiting sleeve (505) wraps around the surface of the wire. The moisture-absorbing baffle (502) adsorbs and dries the humid air near the inner cavity of the wire connection mechanism (5). S2. Then place the dehumidification mechanism (3) at the bottom of the fireproof shell (1), and clamp the strip (17) in the inner cavity of the slot (18). Install and fix it by using adhesive and bolts. The adhesive ensures that the connection has good sealing. S3. When it is necessary to dehumidify the inside of the equipment, the dehumidification mechanism (3) is turned on by the controller. At this time, the dehumidifying fan (305) performs the dehumidifying work, and the blowing and cooling fan (14) located at the top of the inner cavity of the fireproof shell (1) blows air directly downwards, and then cooperates with the dehumidifying fan (305) to quickly remove the humid air inside the equipment. S4. Subsequently, when humid air is drawn into the inner cavity of the housing (301), the blown-off dust will be sucked away together. Fine dust and impurities will be filtered through the filter screen (307) to ensure the dryness of the equipment and avoid the accumulation of a large amount of dust. S5. The humidity sensor (22) and temperature sensor (23) are responsible for monitoring the humidity and temperature inside the fireproof shell (1). When the humidity or temperature exceeds the preset range, the sensor control unit (21) will receive the corresponding signal and process and analyze the data through data acquisition, processing and analysis, and control algorithm module. When an abnormal situation is detected, the sensor control unit (21) will trigger the control algorithm module to generate the corresponding control command. The communication interface module will transmit the control command to the sound and light alarm (20) to trigger the alarm function of the sound and light alarm (20) and notify people of the possible dangerous situation.

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