Intelligent cabinet based on multi-parameter fusion fire perception and multi-mode linkage fire extinguishing
By integrating multi-parameter fire perception and multi-mode linkage into an intelligent cabinet, combined with sensors and sealing devices, early fire detection and fully sealed suffocation fire suppression are achieved inside the cabinet. This solves the problem of uneven extinguishing agent diffusion in existing technologies and ensures the safety and heat dissipation of the cabinet.
Patent Information
- Application Number
- CN202610596615.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-04-30
- Publication Date
- 2026-07-14
AI Technical Summary
Existing fire suppression methods for server racks suffer from uneven extinguishing agent distribution and an inability to effectively control localized fires, leading to the spread of fires and increased losses.
The intelligent cabinet adopts multi-parameter fusion fire perception and multi-mode linkage. It combines smoke, temperature and gas concentration sensors to detect fires, and achieves full-sealed suffocation fire suppression through sealing devices and fire extinguishing systems inside the cabinet. Small fire extinguishing agent bottles and nozzles are used for local spraying, and ventilation is maintained by dust removal devices.
It enables early fire detection and timely and reliable fire suppression, preventing the spread of fire, reducing losses, and ensuring the airtightness and heat dissipation of the cabinet interior.
Smart Images
Figure CN122377060A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of fire safety cabinets, specifically to an intelligent cabinet based on multi-parameter fusion fire perception and multi-mode linkage fire suppression. Background Technology
[0002] Server rack fire hazards are a comprehensive risk issue involving electrical safety, environmental management, equipment maintenance, and fire protection systems. The core hazards primarily lie in the electrical wiring, including aging wiring, damaged insulation, and prolonged overloading of power sockets or circuits. These factors can easily lead to localized overheating or short circuits, serving as direct ignition sources. Secondly, poor heat dissipation and dust accumulation pose a significant threat. High-load operation of equipment within the rack generates accumulated heat; if ventilation is inadequate or air conditioning malfunctions, this heat cannot be dissipated in time, accelerating the aging of equipment and cables. Thirdly, the failure of fire protection facilities poses a risk. For example, fire detection devices failing to alarm in time, insufficient extinguishing agent concentration, or insufficient duration of fire suppression can all cause small fires to spread and escalate into major fires.
[0003] Currently, server rack structures typically employ high-density hexagonal mesh on the front and rear doors to improve heat dissipation for the products inside. The side doors use a quick-opening design for easy merging of multiple racks. However, this fully open structure makes it difficult to effectively control a fire within one rack. Existing fire suppression methods include: 1) Rack-based methods, activating fire suppression systems for one or more racks. However, due to the open space, a large amount of extinguishing agent diffuses into the external space after spraying, making it difficult to effectively cool and suffocate the interior of the racks. 2) Activating fire suppression systems for the entire server room. This method requires a large amount of extinguishing agent, and the concentration of the extinguishing agent sprayed into the protected space is uneven, making it difficult to diffuse to the localized area where the fire is located. Furthermore, the rising heat from the fire dilutes the extinguishing agent concentration at the fire's location. Therefore, existing fire suppression methods have limitations in extinguishing fires within server racks. Summary of the Invention
[0004] To overcome the shortcomings of the above technologies, this invention provides an intelligent cabinet that uses multi-parameter fusion fire perception and multi-mode fire extinguishing linkage to avoid missed alarms and false alarms caused by single-mode detection.
[0005] The technical solution adopted by this invention to overcome its technical problems is: A smart cabinet based on multi-parameter fusion fire perception and multi-mode linkage fire suppression includes a front opening, a cabinet body with an internal cavity, and a front door that is hinged and rotated at the front opening of the cabinet body. The front door is equipped with a lock for locking the front door relative to the cabinet body. The cabinet also includes: The controller is installed on the cabinet. A multi-parameter fire detection device is installed inside the cabinet and is connected to the controller signal to detect the smoke concentration, temperature and gas concentration inside the cabinet. Fire suppression system, installed inside the cabinet; and Ventilation ports are located at the top and bottom of the cabinet. Sealing devices are installed below the upper ventilation port and above the lower ventilation port. Mounting plate I is installed at the upper ventilation port, and the exhaust fan is fixed to mounting plate I. When the multi-parameter fire detection device detects a fire inside the cabinet, the controller controls the sealing device to close the ventilation port.
[0006] To ensure ventilation, support feet are also installed at the four corners of the bottom of the cabinet.
[0007] To improve sealing, a sealing strip is installed around the front opening of the cabinet and the rear end of the front door.
[0008] To facilitate observation of the equipment's operation, the aforementioned front door is fitted with tempered glass.
[0009] To improve sealing, an inlet plate is installed at the bottom of the cabinet. Cables pass through the inlet plate into the cabinet and connect to the cabinet equipment. A cable sealing head is installed between the cable and the inlet plate. The aforementioned multi-parameter fire detection device includes a smoke sensor, a temperature sensor, a CO gas sensor, and a VOCs gas sensor installed at the upper end of the internal cavity of the cabinet. A fire is determined to have occurred when the smoke sensor detects a smoke concentration greater than 0.2 dB / m³ for a duration greater than 3 seconds, or the temperature sensor measures a temperature rise rate greater than 5°C / second, or the temperature sensor measures an absolute temperature inside the cabinet greater than 70°C, or the smoke sensor detects a smoke concentration and the CO gas sensor and / or the VOCs gas sensor detect gas concentrations exceeding 80% of the warning threshold, or the smoke sensor detects a smoke concentration and the temperature sensor measures a temperature exceeding 70% of the warning threshold, or the CO gas sensor and / or the VOCs gas sensor detects a gas concentration and the temperature sensor measures a temperature exceeding 70% of the warning threshold.
[0010] Furthermore, the aforementioned fire extinguishing system includes a fire extinguishing agent cylinder installed inside the cabinet, N nozzles spaced vertically inside the cabinet, and a solenoid valve, where N is a positive integer greater than or equal to 3. The solenoid valve is signal-connected to the controller, with its inlet end connected to the outlet end of the fire extinguishing agent cylinder, and its outlet end connected to each nozzle via a pipe.
[0011] Furthermore, the aforementioned sealing device includes a bracket I mounted on the cabinet, a motor I mounted on the bracket I, and a cover plate arranged parallel to the horizontal plane. Connecting rods are vertically mounted on both the left and right ends of the cover plate. Brackets II are mounted on the cabinet at both the left and right ends of the motor I. A rotating shaft I is horizontally arranged in the left-right direction, and its left and right ends are rotatably mounted on corresponding brackets II on the same side. The output shaft of the motor I is coaxially connected to the rotating shaft I via a coupling. A rocker arm II is rotatably connected to the head end of the connecting rod via a pin III, and a rocker arm I is rotatably connected to the tail end of the connecting rod via a pin II. The rocker arm I and rocker arm II are parallel. The other end of the rocker arm II is hinged to the corresponding bracket II on the same side via a pin I, and the other end of the rocker arm I is fixed to the rotating shaft I.
[0012] To achieve dust removal, a dust removal device is also included, located at the bottom of the cabinet, for removing dust from the air vents at the bottom of the cabinet.
[0013] Furthermore, the aforementioned dust removal device includes a mounting plate II installed at the bottom of the cabinet cavity, a motor II installed on the mounting plate II, a support arm, and a dust scraper installed at the head end of the support arm. The dust scraper contacts the lower end face of the air vent at the lower end of the cabinet. A rotating shaft II is rotatably installed on the cabinet, with its axis set vertically. The rotating shaft II is connected to the output shaft of the motor II. The tail end of the swing arm III is connected and fixed to the rotating shaft II, and its head end is hinged to the support arm via pin V. The swing arm IV is set parallel to the swing arm III, and its tail end is hinged to the cabinet via pin IV. Its head end is hinged to the support arm via pin VI.
[0014] The beneficial effects of this invention are: it enables fire detection at a very early stage, avoiding missed or false alarms caused by single-method detection, and achieving timely, accurate, and reliable results. In terms of fire extinguishing methods, this invention not only employs small fire extinguishing devices and clean extinguishing agents, but also uses a fully sealed asphyxiation method to ensure that the fire is confined and extinguished within a single cabinet, preventing the fire from spreading and reducing fire losses. A dust removal device is installed on the bottom of the cabinet for regular dust removal to prevent dust from clogging ventilation holes and causing poor internal heat dissipation. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a side cross-sectional view of the front door portion of the present invention; Figure 3 This is a left-side cross-sectional view of the present invention; Figure 4 This is a three-dimensional structural diagram of the cabinet portion of the present invention; Figure 5 This is a bottom view of the present invention; Figure 6 This is a three-dimensional structural diagram of the sealing device of the present invention; Figure 7 This is a schematic diagram illustrating the opening and closing of the cover plate according to the present invention; Figure 8 This is a three-dimensional structural diagram of the dust removal device of the present invention; In the diagram, 1. Controller; 2. Cabinet; 3. Mounting Plate I; 4. Exhaust Fan; 5. Front Door; 6. Tempered Glass; 7. Door Lock; 8. Hinge; 9. Support Leg; 10. Cable Sealing Head; 11. Sprinkler Head; 12. Pipe; 13. Multi-parameter Fire Detection Device; 14. Sealing Device; 15. Solenoid Valve; 16. Extinguishing Agent Bottle; 17. Cabinet Equipment; 18. Dust Removal Device; 19. Sealing Strip; 20. Vent; 14.1. Bracket I; 14.2. Motor I; 14.3. Coupling; 14.4. Shaft I; 14.5. Bracket II; 14.6. Cover Plate; 14.7. Connecting Rod; 14.8. Swing Rod I; 14.9. Swing Rod II; 14.10. Pin I; 14.11. Pin II; 14.12. Pin III; 14.13. Sealing Strip; 18.1. Shaft II; 18.2. Pin IV; 18.3. Swing Rod III. 18.4. Swing arm IV 18.5. Dust scraper strip 18.6. Support arm 18.7. Pin V 18.8. Pin VI 18.9. Mounting plate II 18.10. Motor II. Detailed Implementation
[0016] The following is in conjunction with the appendix Figure 1 To be continued Figure 8 The present invention will be further described below.
[0017] A smart cabinet based on multi-parameter fusion fire perception and multi-mode linkage fire suppression includes a cabinet body 2 with a front opening and an internal cavity, and a front door 5 rotatably mounted at the front opening of the cabinet body 2 via a hinge 8. The front door 5 is equipped with a door lock 7 for locking the front door 5 relative to the cabinet body 2. The cabinet body also includes: a controller 1 mounted on the cabinet body 2; a multi-parameter fire detection device 13 located inside the cabinet body 2 and connected to the controller 1 for detecting smoke concentration, temperature, and gas concentration inside the cabinet body 2; a fire suppression system located inside the cabinet body 2; and vents 20 located at the upper and lower ends of the cabinet body 2. Sealing devices 14 are provided below the upper vent 20 and above the lower vent 20. A mounting plate I 3 is provided at the upper vent 20, and an exhaust fan 4 is fixed to the mounting plate I 3. When the multi-parameter fire detection device 13 detects a fire inside the cabinet body 2, the controller 1 controls the sealing device 14 to close the vent 20. The exhaust fan 4 installed on top of cabinet 2 is a bidirectional fan. When the cabinet is working normally, controller 1 controls the sealing device 14 to open, and exhaust fan 4 exhausts air upwards. Air enters cabinet 2 through the vent 20 at the bottom of cabinet 2 and exits through the vent 20 at the top of cabinet 2, achieving heat dissipation and cooling of the cabinet equipment 17 inside cabinet 2. When dust removal is required, exhaust fan 4 rotates in the reverse direction, exhausting air downwards. Air enters cabinet 2 through the vent 20 at the top of cabinet 2 and exits through the vent 20 at the bottom of cabinet 2, blowing dust from the bottom of cabinet 2 out through the vent 20 at the bottom, preventing dust from entering the cabinet 2 and causing dust accumulation or even false detection by the multi-parameter fire detection device 13. Controller 1 controls the forward or reverse rotation of exhaust fan 4. When the multi-parameter fire detection device 13 detects a fire inside the cabinet 2, the controller 1 issues a command to activate the sealing device 14, sealing the vents 20 at the top and bottom of the cabinet 2. At this time, the oxygen concentration inside the cabinet 2 can gradually decrease to below the minimum oxygen concentration required for combustion, achieving rapid fire extinguishing. Simultaneously, the controller 1 activates the fire extinguishing system, spraying extinguishing agent into the cabinet 2. The extinguishing agent has no external diffusion loss and can maintain a high concentration inside the cabinet 2. The fire is extinguished under the chemical inhibition and physical cooling effect of the extinguishing agent. If the fire is inside the cabinet equipment 17 inside the cabinet 2, the extinguishing agent has difficulty diffusing in, and the fire continues to burn. At this time, the inside of the cabinet is completely sealed, and the oxygen concentration continues to decrease. When the oxygen concentration drops below the minimum oxygen concentration required for the combustion of combustibles, the fire will also be extinguished under the effect of suffocation.
[0018] In one embodiment of the present invention, support feet 9 are provided at the four corners of the lower end of the cabinet 2. By providing support feet 9 at the lower end of the cabinet 2, the cabinet 2 can be easily adjusted so that the distance between its bottom surface and the ground is not less than 100mm, which facilitates air circulation and heat dissipation at the ventilation port 20 at the bottom of the cabinet 2.
[0019] In one embodiment of the present invention, a sealing strip 19 is provided around the front opening of the cabinet 2 and the rear end of the front door 5. When the front door 5 is closed, the sealing strip 19 is compressed to ensure an airtight seal between the front door 5 and the cabinet 2. The sealing strip 19 may be made of foamed rubber material. In this embodiment, preferably, tempered glass 6 is embedded in the front door 5. By using transparent tempered glass 6 in the middle of the front door 5, it is convenient to observe the operation of the cabinet equipment 17 inside the cabinet 2. The tempered glass 6 and the front door 5 may be sealed with adhesive.
[0020] In one embodiment of the present invention, a cable inlet plate is provided at the bottom of the cabinet 2. The cable passes through the cable inlet plate into the cabinet 2 and connects to the cabinet equipment 17 inside the cabinet 2. A cable sealing head 10 is provided between the cable and the cable inlet plate. Different models of cable sealing heads 10 can be selected according to the outer diameter of the cable. After the cable is laid, air cannot enter the cabinet 2 through the gap between the cable and the cabinet 2, thus improving reliability.
[0021] In one embodiment of the present invention, the multi-parameter fire detection device 13 includes a smoke sensor, a temperature sensor, a CO gas sensor, and a VOCs gas sensor installed on the upper end of the internal cavity of the cabinet 2. A fire is determined to have occurred when the smoke sensor detects a smoke concentration greater than 0.2 dB / m³ for a duration greater than 3 seconds, or the temperature sensor measures a temperature rise rate greater than 5°C / second, or the temperature sensor measures an absolute temperature inside the cabinet 2 greater than 70°C, or the smoke sensor detects a smoke concentration and the CO gas sensor and / or the VOCs gas sensor detect gas concentrations exceeding 80% of the warning threshold, or the smoke sensor detects a smoke concentration and the temperature sensor measures a temperature exceeding 70% of the warning threshold, or the CO gas sensor and / or the VOCs gas sensor detect gas concentrations and the temperature sensor measures a temperature exceeding 70% of the warning threshold. Because the exhaust fan 4 exhausts air upwards during normal operation, the airflow inside the cabinet 2 moves upwards, and the smoke generated during a fire moves upwards under high temperature, the multi-parameter fire detection device 13, installed on the top surface of the cabinet 2, can detect fires at any location inside the cabinet at a very early stage.
[0022] In one embodiment of the present invention, the fire extinguishing system includes a fire extinguishing agent bottle 16 installed inside a cabinet 2, N nozzles 11 arranged vertically at intervals within the cabinet 2, and a solenoid valve 15, where N is a positive integer greater than or equal to 3. The solenoid valve 15 is signal-connected to a controller 1, and its inlet is connected to the outlet of the fire extinguishing agent bottle 16. The outlet of the solenoid valve 15 is connected to each nozzle 11 via a pipe 12. The fire extinguishing agent bottle 16 can be filled with one of the following fire extinguishing agents: heptafluoropropane, perfluorohexanone, or carbon dioxide. When using heptafluoropropane or perfluorohexanone, high-pressure nitrogen is required for filling. When the multi-parameter fire detection device 13 detects a fire inside the cabinet 2, the controller 1 controls the solenoid valve 15 to open. The extinguishing agent inside the fire extinguishing agent bottle 16 is transported to each nozzle 11 through the pipeline 12. Each nozzle 11 sprays the extinguishing agent into the cabinet 2 to extinguish the fire. There are at least three nozzles 11 from top to bottom, which can make the extinguishing agent evenly fill the interior space of the cabinet 2.
[0023] In one embodiment of the present invention, the sealing device 14 includes a bracket I 14.1 mounted on the cabinet 2, a motor I 14.2 mounted on the bracket I 14.1, and a cover plate 14.6 arranged parallel to the horizontal plane. Connecting rods 14.7 are vertically mounted on the left and right ends of the cover plate 14.6. Brackets II 14.5 are mounted on the cabinet 2 at the left and right ends of the motor I 14.2. A rotating shaft I 14.4 is horizontally arranged in the left-right direction, and its left and right ends are rotatably mounted on corresponding brackets II 14.5 on the same side. The output shaft of the motor I 14.2 is coaxially connected to the rotating shaft I 14.4 via a coupling 14.3. The head end of the connecting rod 14.7 is rotatably connected to a rocker arm II 14.9 via a pin III 14.12, and the tail end of the connecting rod 14.7 is rotatably connected to a rocker arm I 14.8 via a pin II 14.11. The rocker arm I 14.8 and the rocker arm II... Parallel to each other, the other end of swing arm II 14.9 is hinged to the corresponding bracket II 14.5 on the same side via pin I 14.10, and the other end of swing arm I 14.8 is fixed to rotating shaft I 14.4. Controller 1 can control the bidirectional output motor I 14.2 of sealing device 14 to operate. The rotation of motor I 14.2 drives rotating shaft I 14.4 via coupling 14.3. The rotation of rotating shaft I 14.4 drives swing arm I 14.8 to move the cover plate 14.6 up and down while keeping it horizontal, thus performing the opening and closing actions. Bracket II 14.5, swing arm I 14.8, swing arm II 14.9 and connecting rod 14.7 form a parallelogram four-bar structure, ensuring that the cover plate 14.6 always remains a horizontal pile. The dual-output motor I 14.2 has power outputs from both sides, driving the swing arms I 14.8 on both sides of the cover plate 14.6 to move simultaneously, ensuring that the force on both sides of the cover plate 14.6 is uniform. The cover plate 14.6 can be bent upwards around its perimeter to form a bend, increasing strength and preventing deformation. This ensures that the force on the cover plate 14.6 is evenly distributed around its perimeter when closed, effectively pressing the sealing strip 14.13 to ensure a tight, airtight seal between the cover plate 14.6 and the top or bottom surface of the cabinet 2.
[0024] When the cabinet is operating normally, motor I 14.2 drives the cover plate 14.6 to be open, and the exhaust fan 4 at the top of the cabinet operates, driving airflow from bottom to top inside the cabinet to dissipate heat for the equipment inside. Once the multi-parameter fire detection device 13 detects a fire, the controller 1 controls motor I 14.2 to drive the cover plate 14.6 to contact the top and bottom surfaces of the cabinet 2, sealing the vent 20. The interior of the cabinet 2 is then completely sealed, and the internal oxygen concentration gradually decreases below the minimum oxygen concentration required for combustion.
[0025] In one embodiment of the present invention, a dust removal device 18 is further provided at the lower end of the cabinet 2 for removing dust from the air vent 20 at the lower end of the cabinet 2. The controller 1 can periodically activate the dust removal device 18 to sweep off the dust adhering to the air vent 20 at the bottom of the cabinet 2, preventing long-term dust accumulation from causing poor air circulation and affecting heat dissipation.
[0026] In this embodiment, the dust removal device 18 includes a mounting plate II 18.9 installed at the bottom of the cavity of the cabinet 2, a motor II 18.10 installed on the mounting plate II 18.9, a support arm 18.6, and a dust scraper 18.5 installed at the head end of the support arm 18.6. The dust scraper 18.5 contacts the lower end face of the vent 20 at the lower end of the cabinet 2. The rotating shaft II 18.1 is rotatably mounted on the cabinet 2, and the axis of the rotating shaft II 18.1 is arranged in the vertical direction. The rotating shaft II 18.1 is drivenly connected to the output shaft of the motor II 18.10. The tail end of the swing arm III 18.3 is connected and fixed to the rotating shaft II 18.1, and its head end is hinged to the support arm 18.6 through the pin V 18.7. The swing arm IV 18.4 is arranged parallel to the swing arm III 18.3, and the tail end of the swing arm IV 18.4 is connected to the pin IV 18.2 is hinged to cabinet 2, and its head end is hinged to support arm 18.6 via pin VI 18.8. When dust removal is required, controller 1 drives motor II 18.10 to operate. Motor II 18.10 rotates, thereby driving swing arm III 18.3 to swing. III 18.3 uses support arm 18.6 to drive dust scraper 18.5 to move on vent 20, sweeping the dust off vent 20.
[0027] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A smart cabinet based on multi-parameter fusion fire perception and multi-mode linkage fire suppression, comprising a cabinet body (2) with a front opening and an internal cavity, and a front door (5) rotatably mounted at the front opening of the cabinet body (2) via a hinge (8), wherein a door lock (7) is installed on the front door (5) for locking the front door (5) relative to the cabinet body (2), characterized in that, Also includes: The controller (1) is installed on the cabinet (2); A multi-parameter fire detection device (13) is installed inside the cabinet (2) and is connected to the controller (1) for detecting the smoke concentration, temperature and gas concentration inside the cabinet (2). Fire extinguishing system, installed inside cabinet (2); and Ventilation ports (20) are respectively set at the upper and lower ends of the cabinet (2). Sealing devices (14) are set below the upper ventilation port (20) and above the lower ventilation port (20). Mounting plate I (3) is set at the upper ventilation port (20). The exhaust fan (4) is fixed on the mounting plate I (3). When the multi-parameter fire detection device (13) detects a fire in the cabinet (2), the controller (1) controls the sealing device (14) to close the ventilation port (20).
2. The intelligent cabinet based on multi-parameter fusion fire perception and multi-mode linkage fire suppression as described in claim 1, characterized in that: It also includes support feet (9) at the four corners of the bottom of the cabinet (2).
3. The intelligent cabinet based on multi-parameter fusion fire perception and multi-mode linkage fire suppression as described in claim 1, characterized in that: A sealing strip (19) is provided around the front opening of the cabinet (2) and the rear end of the front door (5).
4. The intelligent cabinet based on multi-parameter fusion fire perception and multi-mode linkage fire suppression as described in claim 1, characterized in that: The front door (5) is fitted with tempered glass (6).
5. The intelligent cabinet based on multi-parameter fusion fire perception and multi-mode linkage fire suppression as described in claim 1, characterized in that: The bottom of the cabinet (2) is provided with an inlet plate. The cable passes through the inlet plate into the cabinet (2) and is connected to the cabinet equipment (17) inside the cabinet (2). A cable sealing head (10) is provided between the cable and the inlet plate.
6. The intelligent cabinet based on multi-parameter fusion fire perception and multi-mode linkage fire suppression as described in claim 1, characterized in that: The multi-parameter fire detection device (13) includes a smoke sensor, a temperature sensor, a CO gas sensor, and a VOCs gas sensor installed on the upper end of the internal cavity of the cabinet (2). When the smoke sensor detects a smoke concentration greater than 0.2 dB / m and the duration is greater than 3 seconds, or the temperature sensor measures a temperature rise rate greater than 5℃ / second, or the temperature sensor measures an absolute temperature inside the cabinet (2) greater than 70℃, or the smoke sensor detects a smoke concentration and the CO gas sensor and / or the VOCs gas sensor detects a gas concentration exceeding 80% of the warning threshold, or the smoke sensor detects a smoke concentration and the temperature sensor measures a temperature exceeding 70% of the warning threshold, or the CO gas sensor and / or the VOCs gas sensor detects a gas concentration and the temperature sensor measures a temperature exceeding 70% of the warning threshold, it is determined that a fire has occurred.
7. The intelligent cabinet based on multi-parameter fusion fire perception and multi-mode linkage fire suppression as described in claim 1, characterized in that: The fire extinguishing system includes a fire extinguishing agent bottle (16) installed in the cabinet (2), N nozzles (11) arranged vertically in the cabinet (2) and a solenoid valve (15), where N is a positive integer greater than or equal to 3. The solenoid valve (15) is signal-connected to the controller (1), and the inlet end of the solenoid valve (15) is connected to the outlet end of the fire extinguishing agent bottle (16). The outlet end of the solenoid valve (15) is connected to each nozzle (11) through a pipe (12).
8. The intelligent cabinet based on multi-parameter fusion fire perception and multi-mode linkage fire suppression as described in claim 1, characterized in that: The sealing device (14) includes a bracket I (14.1) installed on the cabinet (2), a motor I (14.2) installed on the bracket I (14.1), and a cover plate (14.6) set parallel to the horizontal plane. The left and right ends of the cover plate (14.6) are respectively vertically installed with connecting rods (14.7). The left and right ends of the motor I (14.2) are respectively installed with brackets II (14.5) on the cabinet (2). The rotating shaft I (14.4) is set horizontally in the left and right direction. The left and right ends of the rotating shaft I (14.4) are respectively rotatably installed on the corresponding brackets II (14.5) on the same side. 2) The output shaft is coaxially connected to the rotating shaft I (14.4) via a coupling (14.3). The head end of the connecting rod (14.7) is rotatably connected to the rocker arm II (14.9) via the pin III (14.12). The tail end of the connecting rod (14.7) is rotatably connected to the rocker arm I (14.8) via the pin II (14.11). The rocker arm I (14.8) and the rocker arm II (14.9) are parallel. The other end of the rocker arm II (14.9) is hinged to the corresponding bracket II (14.5) on the same side via the pin I (14.10). The other end of the rocker arm I (14.8) is fixed on the rotating shaft I (14.4).
9. The intelligent cabinet based on multi-parameter fusion fire perception and multi-mode linkage fire suppression as described in claim 1, characterized in that: It also includes a dust removal device (18) installed at the lower end of the cabinet (2) for removing dust from the air vent (20) at the lower end of the cabinet (2).
10. The intelligent cabinet based on multi-parameter fusion fire perception and multi-mode linkage fire suppression as described in claim 9, characterized in that: The dust removal device (18) includes a mounting plate II (18.9) installed at the bottom of the cavity of the cabinet (2), a motor II (18.10) installed on the mounting plate II (18.9), a support arm (18.6), and a dust scraper (18.5) installed at the head end of the support arm (18.6). The dust scraper (18.5) is in contact with the lower end face of the vent (20) at the lower end of the cabinet (2). The rotating shaft II (18.1) is rotatably installed on the cabinet (2), and the axis of the rotating shaft II (18.1) is set in the vertical direction. The rotating shaft II (18.1) is connected to the output shaft of the motor II (18.10). The tail end of the swing arm III (18.3) is connected and fixed to the rotating shaft II (18.1), and its head end is hinged to the support arm (18.6) through the pin V (18.7). The swing arm IV (18.4) is set parallel to the swing arm III (18.3). The tail end of the swing arm IV (18.4) is hinged to the cabinet (2) through the pin IV (18.2), and its head end is hinged to the support arm (18.6) through the pin VI (18.8).