An electrical cabinet fire monitoring device

Abstract

The application relates to the technical field of fire monitoring, in particular to an electrical cabinet fire monitoring device which comprises an alarm module and a monitoring module; the monitoring module comprises a controller and a monitoring module, the monitoring module comprises a monitoring interface, an insulating heat-conducting pipe and an electric heat fuse; the insulating heat-conducting pipe is a hollow pipe, and the inner diameter is larger than the diameter of the electric heat fuse; the monitoring interface comprises an input interface and an output interface, the two ends of the electric heat fuse are connected to the input interface and the output interface respectively, and the middle part between the two ends of the electric heat fuse penetrates through the insulating heat-conducting pipe; the controller is electrically connected with the monitoring module, the controller supplies power to the output interface, detects whether the corresponding input interface is connected, and if not, the controller activates the alarm module; when reaching the predetermined temperature, the electric heat fuse is heated and melted, and after melting, the melted electric heat fuse gathers into a group of metal liquid drops under the action of liquid surface tension, the liquid metal drops cannot maintain the filament shape to form a circuit break, and the state is detected to alarm.

Description

Technical Field

[0001] This invention relates to the field of fire monitoring technology, specifically to a fire monitoring device for electrical cabinets. Background Technology

[0002] With the rapid development of industrialization and urbanization, electrical cabinets, as an important component of the power system, are widely used in industrial, commercial, and residential buildings. The normal operation of electrical cabinets is crucial to ensuring the stability and security of power supply.

[0003] Currently, fire monitoring of electrical cabinets mainly relies on traditional fire alarm systems, which typically detect fires based on single or multiple parameters such as temperature, smoke, or flame. However, these methods have limitations. For example, traditional smoke detectors primarily rely on smoke detection to trigger the alarm, meaning they usually only issue a warning after a fire has already occurred and smoke has been produced. This method cannot predict the occurrence of a fire in advance, resulting in warnings often being delayed beyond the initial stages of a fire, missing the optimal intervention window, and failing to pinpoint the specific location of the fault. Therefore, there is a need for an electrical cabinet fire monitoring device that can achieve rapid response and locate specific faulty circuits. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an electrical cabinet fire monitoring device that can achieve rapid response and locate specific faulty lines.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0006] An electrical cabinet fire monitoring device is used for fire monitoring of an electrical cabinet, wherein the electrical cabinet is equipped with several electrical components.

[0007] The electrical cabinet fire monitoring device includes a power supply, an alarm module, and a monitoring module, wherein the power supply provides power to the alarm module and the monitoring module.

[0008] The monitoring module includes a controller and monitoring modules corresponding to the number of electrical components. The monitoring module includes a monitoring interface, an insulated heat-conducting pipe, and a conductive thermal fuse. The conductive thermal fuse is made of tin-bismuth alloy.

[0009] The insulating heat-conducting tube is bonded to the electrical component with thermally conductive adhesive; the insulating heat-conducting tube is a hollow tube, and the inner diameter of the hollow tube is larger than the diameter of the conductive heat-conducting wire; the melting temperature of the insulating heat-conducting tube and the thermally conductive adhesive is higher than that of the conductive heat-conducting wire.

[0010] The monitoring interface includes an input interface and an output interface. The two ends of the conductive thermal fuse are connected to the input interface and the output interface, respectively. The middle part between the two ends of the conductive thermal fuse passes through an insulating heat-conducting tube. The length of the conductive thermal fuse passing through the insulating heat-conducting tube is greater than the length of the insulating heat-conducting tube. After the conductive thermal fuse passes through the insulating heat-conducting tube, both ends of the insulating heat-conducting tube are sealed.

[0011] The controller is electrically connected to the monitoring module. The controller controls the power supply to supply power to the output interface and at the same time detects whether there is a return signal at the corresponding input interface. If there is a return signal, no action is taken; otherwise, the controller activates the alarm module to sound an alarm.

[0012] Preferably, the portion of the conductive heat-conducting wire located outside the insulating heat-conducting tube is wrapped with an insulating heat-insulating film.

[0013] Preferably, the insulating and heat-insulating film is a polyimide film or a mica paper film.

[0014] Preferably, the electrical cabinet fire monitoring device further includes a cloud platform, which is communicatively connected to the monitoring module.

[0015] Preferably, the monitoring module further includes an infrared camera;

[0016] The controller is electrically connected to the infrared camera. The controller controls the power supply to supply power to the output interface and at the same time detects whether there is a return signal at the corresponding input interface. If there is a return signal, no action is taken. If there is no return signal, the controller activates the alarm module to sound an alarm. At the same time, the controller controls the infrared camera to take pictures of the electrical components corresponding to the absence of a return signal and upload them to the cloud.

[0017] Preferably, the electrical cabinet fire monitoring device further includes a fire extinguishing agent bottle installed inside the electrical cabinet, and the fire extinguishing agent bottle includes a solenoid valve;

[0018] When the controller activates the alarm module to sound an alarm, it simultaneously controls the solenoid valve to open and extinguish the fire.

[0019] Preferably, the extinguishing agent bottle is filled with perfluorohexanone gas.

[0020] Preferably, the electrical cabinet includes a power supply, which includes a battery and a power supply line, and the battery and the power supply line are electrically connected to the power supply.

[0021] Preferably, the battery is a lead-acid battery.

[0022] Preferably, the two ends of the conductive thermal fuse are detachably connected to the input interface and the output interface, respectively.

[0023] The beneficial effects of this invention are as follows: By extending the conductive thermal fuse through the insulating heat pipe to a length greater than the length of the insulating heat pipe, a portion of the conductive thermal fuse is in contact with the inner wall of the insulating heat pipe, preventing the conductive thermal fuse from being suspended in the insulating heat pipe, and providing sufficient unused space within the insulating heat pipe; combined with the use of an insulating heat pipe and thermally conductive adhesive with a higher melting temperature, the insulating heat pipe and thermally conductive adhesive can transfer the heat from the electrical components to the conductive thermal fuse. When a predetermined temperature is reached, the conductive thermal fuse melts. Since the conductive thermal fuse is made of tin-bismuth... When the alloy melts, it coalesces into a cluster of molten metal droplets under the influence of surface tension. The unused space can accommodate the molten tin-bismuth alloy droplets. The molten tin-bismuth alloy droplets cannot maintain their filamentous shape, thus creating an open circuit. Furthermore, by sealing both ends of the insulating heat-conducting tube, the molten tin-bismuth alloy will only flow within the insulating heat-conducting tube and will not drip onto other electrical components, thus preventing a chain reaction of accidents. The sealing also prevents oxidation of the conductive heat-conducting wire, ensuring a sufficient service life. Moreover, the overall structure is simple and can be easily retrofitted to existing electrical cabinets. Attached Figure Description

[0024] Figure 1 A simplified structural diagram of an electrical cabinet fire monitoring device according to a specific embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the first state of the combination of the insulating heat-conducting pipe and the conductive heat-conducting fuse in an electrical cabinet fire monitoring device according to a specific embodiment of the present invention.

[0026] Figure 3 This is a schematic diagram of the second state of the electrical cabinet fire monitoring device according to a specific embodiment of the present invention, showing the combination of the insulating heat-conducting tube and the conductive heat-conducting fuse.

[0027] Labeling Explanation: 1. Electrical Components; 2. Power Supply; 3. Alarm Module; 4. Monitoring Module; 41. Monitoring Interface; 42. Insulating Heat Conducting Pipe; 43. Conductive Thermal Fuse; 44. Sealing; 45. Metal Droplet; 46. Infrared Camera; 5. Cloud Platform; 6. Fire Extinguishing Agent Bottle; 61. Solenoid Valve. Detailed Implementation

[0028] To explain in detail the technical content, objectives, and effects of the present invention, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0029] Please refer to Figures 1 to 3 An electrical cabinet fire monitoring device is used for fire monitoring of an electrical cabinet, wherein the electrical cabinet is equipped with a plurality of electrical components 1;

[0030] The electrical cabinet fire monitoring device includes a power supply 2, an alarm module 3 and a monitoring module 4, wherein the power supply 2 provides power to the alarm module 3 and the monitoring module 4.

[0031] The monitoring module 4 includes a controller and monitoring modules 4 in number corresponding to the number of electrical components 1. The monitoring module 4 includes a monitoring interface 41, an insulating heat-conducting pipe 42, and a conductive thermal fuse 43. The conductive thermal fuse 43 is made of tin-bismuth alloy.

[0032] The insulating heat-conducting tube 42 is bonded to the electrical component 1 with thermally conductive adhesive; the insulating heat-conducting tube 42 is a hollow tube, and the inner diameter of the hollow tube is larger than the diameter of the conductive heat-conducting wire 43; the melting temperature of the insulating heat-conducting tube 42 and the thermally conductive adhesive is higher than that of the conductive heat-conducting wire 43.

[0033] The monitoring interface 41 includes an input interface and an output interface. The two ends of the conductive thermal fuse 43 are respectively connected to the input interface and the output interface. The middle part between the two ends of the conductive thermal fuse 43 passes through the insulating heat-conducting pipe 42. The length of the conductive thermal fuse 43 passing through the insulating heat-conducting pipe 42 is greater than the length of the insulating heat-conducting pipe 42. After the conductive thermal fuse 43 passes through the insulating heat-conducting pipe 42, both ends of the insulating heat-conducting pipe 42 are sealed 44.

[0034] The controller is electrically connected to the monitoring module 4. The controller controls the power supply 2 to supply power to the output interface and at the same time detects whether there is a return signal at the corresponding input interface. If there is a return signal, no action is taken; otherwise, the controller activates the alarm module 3 to sound an alarm.

[0035] As described above, the length of the conductive thermal fuse 43 passing through the insulating heat-conducting tube 42 is greater than the length of the insulating heat-conducting tube 42, ensuring that part of the conductive thermal fuse 43 is in close contact with the inner wall of the insulating heat-conducting tube 42. This prevents the conductive thermal fuse 43 from being suspended in the insulating heat-conducting tube 42, and there is still sufficient unused space inside the insulating heat-conducting tube 42. Combined with the insulating heat-conducting tube 42 and the thermally conductive adhesive, which have a higher melting temperature, the insulating heat-conducting tube 42 and the thermally conductive adhesive can transfer the heat of the electrical component 1 to the conductive thermal fuse 43. When the predetermined temperature is reached, the conductive thermal fuse 43 melts. 3 is a tin-bismuth alloy. After melting, it will agglomerate into a clump of liquid metal droplets 45 under the action of liquid surface tension. The idle space can just accommodate the liquid tin-bismuth alloy droplets 45. The liquid tin-bismuth alloy droplets 45 cannot maintain a filamentous shape, thus forming an open circuit. Furthermore, by sealing 44 at both ends of the insulating heat-conducting pipe 42, the liquid tin-bismuth alloy will only flow in the insulating heat-conducting pipe 42 and will not drip onto other electrical components 1, thus preventing a chain reaction of accidents. In addition, sealing 44 can also prevent the oxidation of the conductive heat-conducting wire 43, ensuring a sufficient service life. Moreover, the overall structure is simple and can be easily modified for existing electrical cabinets.

[0036] Furthermore, the portion of the conductive heat-conducting wire 43 located outside the insulating heat-conducting tube 42 is wrapped with an insulating heat-insulating film.

[0037] As can be seen from the above description, the insulating and heat-insulating film can prevent the conductive thermal fuse 43 from being melted by fire accidents of other electrical components 1, thus avoiding false alarms, and also reduces oxidation during daily use.

[0038] Furthermore, the insulating and heat-insulating film is a polyimide film or a mica paper film.

[0039] Furthermore, the electrical cabinet fire monitoring device also includes a cloud platform 5, which is communicatively connected to the monitoring module 4.

[0040] As can be seen from the above description, the cloud 5 settings can collect fire information in a timely manner, and the collected data can improve the accuracy of fire accident diagnosis.

[0041] Furthermore, the monitoring module 4 also includes an infrared camera 46;

[0042] The controller is electrically connected to the infrared camera 46. The controller controls the power supply 2 to supply power to the output interface and detects whether there is a return signal at the corresponding input interface. If there is a return signal, no action is taken. If there is no return signal, the controller activates the alarm module 3 to sound an alarm. At the same time, the controller controls the infrared camera 46 to take a picture of the electrical component 1 corresponding to the absence of a return signal and upload it to the cloud 5.

[0043] As can be seen from the above description, by setting up the infrared camera 46, since the infrared characteristics of electrical fires are obvious, direct shooting can determine the location of the problem, and the data can be uploaded to the cloud 5, which can facilitate the centralized and timely diagnosis by the staff of the cloud 5, and then the maintenance task can be assigned, thus improving efficiency.

[0044] Furthermore, the electrical cabinet fire monitoring device also includes a fire extinguishing agent bottle 6 installed inside the electrical cabinet, and the fire extinguishing agent bottle 6 includes a solenoid valve 61;

[0045] When the controller activates the alarm module 3 to sound an alarm, it simultaneously controls the solenoid valve 61 to open and extinguish the fire.

[0046] As can be seen from the above description, the installation of fire extinguishing agent cylinder 6 enables timely fire suppression and prevents the fire from spreading.

[0047] Furthermore, the extinguishing agent bottle 6 is filled with perfluorohexanone gas.

[0048] Furthermore, the electrical cabinet includes a power supply, and the power supply 2 includes a battery and a power supply line, which are electrically connected to the power supply 2.

[0049] As can be seen from the above description, direct power supply via power line and independent battery power supply can avoid the situation where the electrical cabinet fire monitoring device fails to operate after an accident when the power supply is used as electrical component 1.

[0050] Furthermore, the battery is a lead-acid battery.

[0051] As can be seen from the above description, lead-acid batteries are safer to use because they are used in electrical cabinets, which pose a fire risk. Lithium-ion batteries, on the other hand, are prone to explosion and combustion.

[0052] Furthermore, the two ends of the conductive thermal fuse 43 are detachably connected to the input interface and the output interface, respectively.

[0053] As can be seen from the above description, the detachable connection structure facilitates wiring, adjustment of the conductive thermal fuse 43, and replacement of the conductive thermal fuse 43. Example 1

[0054] An electrical cabinet fire monitoring device is provided for fire monitoring of an electrical cabinet. The electrical cabinet is equipped with a number of electrical components 1. The electrical components 1 include circuit boards, relays, cables, copper busbars, and other components found in the electrical cabinet.

[0055] The electrical cabinet fire monitoring device includes a power supply 2, an alarm module 3 and a monitoring module 4, wherein the power supply 2 provides power to the alarm module 3 and the monitoring module 4.

[0056] The monitoring module 4 includes a controller and a number of monitoring modules 4 corresponding to the number of electrical components 1. The monitoring module 4 includes a monitoring interface 41, an insulating heat-conducting pipe 42, and a conductive heat-conducting wire 43. The conductive heat-conducting wire 43 is made of tin-bismuth alloy. The melting point of tin-bismuth alloy can be customized by adjusting the formula as needed, such as 60℃, 70℃, 80℃, etc. It is a mature process and existing technology.

[0057] The insulating heat-conducting tube 42 is bonded to the electrical component 1 with thermally conductive adhesive; the insulating heat-conducting tube 42 is a hollow tube, and the inner diameter of the hollow tube is larger than the diameter of the conductive heat-conducting wire 43; the melting temperature of the insulating heat-conducting tube 42 and the thermally conductive adhesive is higher than that of the conductive heat-conducting wire 43.

[0058] The monitoring interface 41 includes an input interface and an output interface. The two ends of the conductive thermal fuse 43 are respectively connected to the input interface and the output interface. The middle part between the two ends of the conductive thermal fuse 43 passes through the insulating heat-conducting pipe 42. The length of the conductive thermal fuse 43 passing through the insulating heat-conducting pipe 42 is greater than the length of the insulating heat-conducting pipe 42. After the conductive thermal fuse 43 passes through the insulating heat-conducting pipe 42, both ends of the insulating heat-conducting pipe 42 are sealed 44.

[0059] The controller is electrically connected to the monitoring module 4. The controller controls the power supply 2 to supply power to the output interface and at the same time detects whether there is a return signal at the corresponding input interface. If there is a return signal, no action is taken; otherwise, the controller activates the alarm module 3 to sound an alarm.

[0060] The portion of the conductive heat-conducting wire 43 located outside the insulating heat-conducting tube 42 is wrapped with an insulating heat-insulating film.

[0061] The insulating and heat-insulating film is a polyimide film or a mica paper film.

[0062] The electrical cabinet fire monitoring device also includes a cloud platform 5, which is connected to the monitoring module 4 via a wired or wireless connection. If wireless, it can be connected via Wi-Fi, or a communication module can be added, such as a Bluetooth module, a 4G module, or a 5G module.

[0063] The monitoring module 4 also includes an infrared camera 46;

[0064] The controller is electrically connected to the infrared camera 46. The controller controls the power supply 2 to supply power to the output interface and detects whether there is a return signal at the corresponding input interface. If there is a return signal, no action is taken. If there is no return signal, the controller activates the alarm module 3 to sound an alarm. At the same time, the controller controls the infrared camera 46 to take a picture of the electrical component 1 corresponding to the absence of a return signal and upload it to the cloud 5.

[0065] The electrical cabinet fire monitoring device also includes a fire extinguishing agent bottle 6 installed inside the electrical cabinet, and the fire extinguishing agent bottle 6 includes a solenoid valve 61.

[0066] When the controller activates the alarm module 3 to sound an alarm, it simultaneously controls the solenoid valve 61 to open and extinguish the fire.

[0067] The extinguishing agent bottle 6 is filled with perfluorohexanone gas.

[0068] The electrical cabinet includes a power supply, and the power supply 2 includes a battery and a power supply line, which are electrically connected to the power supply.

[0069] The battery is a lead-acid battery.

[0070] The two ends of the conductive thermal fuse 43 can be detachably connected to the input interface and the output interface, respectively. Example 2

[0071] An electrical cabinet fire monitoring device is provided for fire monitoring of an electrical cabinet. The electrical cabinet is equipped with a number of electrical components 1. The electrical components 1 include circuit boards, relays, cables, copper busbars, and other components found in the electrical cabinet.

[0072] The electrical cabinet fire monitoring device includes a power supply 2, an alarm module 3 and a monitoring module 4, wherein the power supply 2 provides power to the alarm module 3 and the monitoring module 4.

[0073] The monitoring module 4 includes a controller and a number of monitoring modules 4 corresponding to the number of electrical components 1. The monitoring module 4 includes a monitoring interface 41, an insulating heat-conducting pipe 42, and a conductive heat-conducting wire 43. The conductive heat-conducting wire 43 is made of tin-bismuth alloy. The melting point of tin-bismuth alloy can be customized by adjusting the formula as needed, such as 60℃, 70℃, 80℃, etc. It is a mature process and existing technology.

[0074] The insulating heat-conducting tube 42 is bonded to the electrical component 1 with thermally conductive adhesive; the insulating heat-conducting tube 42 is a hollow tube, and the inner diameter of the hollow tube is larger than the diameter of the conductive heat-conducting wire 43; the melting temperature of the insulating heat-conducting tube 42 and the thermally conductive adhesive is higher than that of the conductive heat-conducting wire 43.

[0075] The monitoring interface 41 includes an input interface and an output interface. The two ends of the conductive thermal fuse 43 are respectively connected to the input interface and the output interface. The middle part between the two ends of the conductive thermal fuse 43 passes through the insulating heat-conducting pipe 42. The length of the conductive thermal fuse 43 passing through the insulating heat-conducting pipe 42 is greater than the length of the insulating heat-conducting pipe 42. After the conductive thermal fuse 43 passes through the insulating heat-conducting pipe 42, both ends of the insulating heat-conducting pipe 42 are sealed 44.

[0076] The controller is electrically connected to the monitoring module 4. The controller controls the power supply 2 to supply power to the output interface and at the same time detects whether there is a return signal at the corresponding input interface. If there is a return signal, no action is taken; otherwise, the controller activates the alarm module 3 to sound an alarm.

[0077] The portion of the conductive heat-conducting wire 43 located outside the insulating heat-conducting tube 42 is wrapped with an insulating heat-insulating film.

[0078] The insulating and heat-insulating film is a polyimide film or a mica paper film.

[0079] The electrical cabinet includes a power supply, and the power supply 2 includes a battery and a power supply line, which are electrically connected to the power supply.

[0080] The battery is a lead-acid battery.

[0081] The two ends of the conductive thermal fuse 43 can be detachably connected to the input interface and the output interface, respectively.

[0082] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent modifications made based on the content of the present invention specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. An electrical cabinet fire monitoring device for monitoring fires in an electrical cabinet, wherein the electrical cabinet contains a plurality of electrical components; Its features are, The electrical cabinet fire monitoring device includes a power supply, an alarm module, and a monitoring module, wherein the power supply provides power to the alarm module and the monitoring module. The monitoring module includes a controller and monitoring modules corresponding to the number of electrical components. The monitoring module includes a monitoring interface, an insulated heat-conducting pipe, and a conductive thermal fuse. The conductive thermal fuse is made of tin-bismuth alloy. The insulating heat-conducting tube is bonded to the electrical component by thermally conductive adhesive; the insulating heat-conducting tube is a hollow tube, and the inner diameter of the hollow tube is larger than the diameter of the conductive heat-conducting wire; the melting temperature of the insulating heat-conducting tube and the thermally conductive adhesive is higher than that of the conductive heat-conducting wire; the outer part of the conductive heat-conducting wire is wrapped with an insulating and heat-insulating film. The monitoring interface includes an input interface and an output interface. The two ends of the conductive thermal fuse are connected to the input interface and the output interface, respectively. The middle part between the two ends of the conductive thermal fuse passes through an insulating heat-conducting tube. The length of the conductive thermal fuse passing through the insulating heat-conducting tube is greater than the length of the insulating heat-conducting tube. After the conductive thermal fuse passes through the insulating heat-conducting tube, both ends of the insulating heat-conducting tube are sealed. The controller is electrically connected to the monitoring module. The controller controls the power supply to supply power to the output interface and at the same time detects whether there is a return signal at the corresponding input interface. If there is a return signal, no action is taken; otherwise, the controller activates the alarm module to sound an alarm.

2. The electrical cabinet fire monitoring device according to claim 1, characterized in that, The insulating and heat-insulating film is a polyimide film or a mica paper film.

3. The electrical cabinet fire monitoring device according to claim 1, characterized in that, The electrical cabinet fire monitoring device also includes a cloud platform, which is communicatively connected to the monitoring module.

4. The electrical cabinet fire monitoring device according to claim 3, characterized in that, The monitoring module also includes an infrared camera; The controller is electrically connected to the infrared camera. The controller controls the power supply to supply power to the output interface and at the same time detects whether there is a return signal at the corresponding input interface. If there is a return signal, no action is taken. If there is no return signal, the controller activates the alarm module to sound an alarm. At the same time, the controller controls the infrared camera to take pictures of the electrical components corresponding to the absence of a return signal and upload them to the cloud.

5. The electrical cabinet fire monitoring device according to claim 1, characterized in that, The electrical cabinet fire monitoring device also includes a fire extinguishing agent bottle installed inside the electrical cabinet, and the fire extinguishing agent bottle includes a solenoid valve; When the controller activates the alarm module to sound an alarm, it simultaneously controls the solenoid valve to open and extinguish the fire inside the electrical cabinet.

6. The electrical cabinet fire monitoring device according to claim 5, characterized in that, The extinguishing agent bottle is filled with perfluorohexanone gas.

7. The electrical cabinet fire monitoring device according to claim 1, characterized in that, The electrical cabinet includes a power supply, which includes a battery and a power supply line, and the battery and the power supply line are electrically connected to the power supply.

8. The electrical cabinet fire monitoring device according to claim 7, characterized in that, The battery is a lead-acid battery.

9. The electrical cabinet fire monitoring device according to claim 1, characterized in that, The two ends of the conductive thermal fuse are detachably connected to the input interface and the output interface, respectively.

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