Fire extinguishing system using semiconductor power generation and working method

Abstract

The application provides a fire extinguishing system using semiconductor power generation and a working method, relates to the technical field of cabinets, and comprises a cabinet body, a thermoelectric power generation device, a heat conduction device and a heat sink. The thermoelectric power generation device comprises a thermoelectric power generation sheet with a hot end heat receiving surface and a cold end heat radiating surface, the thermoelectric power generation sheet is clamped between the heat conduction device and the heat sink, the heat conduction device is fixed in the cabinet body, the heat conduction device has a first contact plane in contact with the hot end heat receiving surface, the heat sink is fixed outside the cabinet body, the heat sink has a second contact plane in contact with the cold end heat radiating surface, a control circuit is arranged in or outside the cabinet body, the thermoelectric power generation sheet is electrically connected with the control circuit, a fire extinguishing device is arranged in the cabinet body, a fire extinguishing agent nozzle is arranged in the cabinet body and is connected with the fire extinguishing device, and the fire extinguishing device is electrically connected with the control circuit. The application has the advantages that the fire extinguishing system can stably and reliably operate in the case of fire and the like.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cabinets, in particular to a fire extinguishing system using semiconductor power generation and a working method. BACKGROUND

[0002] Cabinets are generally used in various electrical products to ensure the safe application of electrical products, which is the relentless pursuit of the entire electrical industry, and the fire safety of electrical products is particularly important in various electrical safety. In the actual application process of the cabinet, due to the influence of environmental factors, various electrical product self-heat dissipation factors, etc., the internal temperature of the cabinet is easy to be too high to cause a fire, and the high temperature also affects the normal operation of various electrical products in the cabinet.

[0003] In order to avoid fire or affect the normal operation of electrical products, the existing cabinet often sets a fire extinguishing device for fire extinguishing and a heat dissipation fan for heat dissipation. For example, a computer cabinet fire extinguishing mechanism disclosed in Chinese Patent No. CN202310048018.8 has a fire extinguishing mechanism and a heat dissipation fan in the cabinet body; and for example, a cloud computing server cabinet device disclosed in Chinese Patent No. CN202211170361.1 also has a fire extinguishing mechanism and a heat dissipation fan in the cabinet. However, the fire extinguishing mechanism or heat dissipation fan of the existing cabinet relies on external power supply for power supply, so that once the external power supply is disconnected, the fire extinguishing or heat dissipation function cannot be realized. In view of the above problems, the present application is produced after the inventor has conducted in-depth research on the problem. SUMMARY

[0004] The technical problem to be solved by the present application is to provide a fire extinguishing system using semiconductor power generation and a working method, which solves the problem that the fire extinguishing mechanism of the existing cabinet relies on external power supply for power supply, so that once the external power supply is disconnected, the fire extinguishing function cannot be realized.

[0005] The present application is implemented as follows:

[0006] In a first aspect, a fire extinguishing system using semiconductor power generation, the fire extinguishing system comprising:

[0007] a cabinet body;

[0008] a thermoelectric power generation device, the thermoelectric power generation device comprising a thermoelectric power generation sheet having a hot end heat receiving surface and a cold end heat dissipation surface, a heat conducting device and a heat sink, the thermoelectric power generation sheet being clamped between the heat conducting device and the heat sink; the heat conducting device is fixed inside the cabinet body, and the heat conducting device has a first contact plane in contact with the hot end heat receiving surface; the heat sink is fixed outside the cabinet body, and the heat sink has a second contact plane in contact with the cold end heat dissipation surface;

[0009] a control circuit, which is arranged inside or outside the cabinet body, and is electrically connected with the thermoelectric power generation sheet;

[0010] a fire extinguishing device, a fire extinguishing agent nozzle is arranged in the cabinet body, and is connected with the fire extinguishing device; the fire extinguishing device is electrically connected with the control circuit.

[0011] Further, the cooling device is further included;

[0012] The cooling device includes a cooling tower, a cooling pump and a cooling circulation pipeline; the cooling tower and the cooling pump are arranged outside the cabinet body, and the cooling circulation pipeline is arranged inside the cabinet body; the bottom of the cooling tower is connected with the cooling pump, one end of the cooling pump is connected with the cooling circulation pipeline, and the other end of the cooling circulation pipeline is connected with the upper part of the cooling tower; the cooling pump is electrically connected with the control circuit.

[0013] Further, the thermoelectric power generation device further includes a fan assembly;

[0014] The fan assembly includes a driving motor, a driving shaft body and a fan blade; the driving shaft body passes through the radiator along the length direction of the radiator, one end of the driving shaft body is connected with the fan blade, and the other end of the driving shaft body is connected with the driving motor; the driving motor is electrically connected with the control circuit.

[0015] Further, the thermoelectric power generation device further includes an insulating and heat insulating layer; a power generation sheet assembly through hole is arranged in the middle part of the insulating and heat insulating layer, one end of the power generation sheet assembly through hole is formed with a first step, and the other end of the power generation sheet assembly through hole is formed with a second step;

[0016] The thermoelectric power generation sheet is assembled in the power generation sheet assembly through hole, the cold end heat dissipation surface of the thermoelectric power generation sheet is flush with the step surface of the first step, and the second contact surface of the radiator is in contact with the step surface of the first step and the cold end heat dissipation surface; the hot end heat receiving surface of the thermoelectric power generation sheet is flush with the step surface of the second step, and the first contact surface of the heat conductor is in contact with the step surface of the second step and the hot end heat receiving surface.

[0017] Further, the thermoelectric power generation device further includes an assembly assembly;

[0018] The assembly component comprises a first fixing sheet, a second fixing sheet, a plurality of fixing bolts and a plurality of fixing nuts; the first fixing sheet penetrates the heat sink along the length direction of the heat sink, the second fixing sheet penetrates the heat conductor along the length direction of the heat conductor, and the two ends of the first fixing sheet and the second fixing sheet are locked together by the fixing bolts and the fixing nuts.

[0019] The insulating and heat insulation layer is close to the outer wall of the cabinet body, and the fixing bolt sequentially penetrates the first fixing sheet, the insulating and heat insulation layer, the cabinet wall of the cabinet body and the second fixing sheet from top to bottom.

[0020] Further, the heat conductor comprises a heat conduction block body, the top of the heat conduction block body forms the first contact plane; the bottom of the heat conduction block body is provided with inclined extension plates at both ends and extends downward, a vertical heat collection area gradually expanding from top to bottom is formed between the bottom of the heat conduction block body and the two inclined extension plates, a plurality of first heat conduction blades are arranged at intervals in the vertical heat collection area, and each first heat conduction blade is arranged perpendicular to the first contact plane; the outer sides of the two inclined extension plates are formed with horizontal heat collection areas, a plurality of second heat conduction blades are arranged at intervals in the horizontal heat collection areas, and each second heat conduction blade is arranged parallel to the first contact plane; the inclined extension plates, the first heat conduction blades and the second heat conduction blades all extend to the end portions at both ends of the heat conduction block body along the length direction of the heat conduction block body.

[0021] Further, the heat sink comprises a heat dissipation block body and a plurality of heat dissipation pieces, the bottom of the heat dissipation block body forms the second contact plane; the top of the heat dissipation block body is formed with an arc convex surface;

[0022] Each heat dissipation piece comprises a heat dissipation fin body, the lower end of the heat dissipation fin body is fixedly connected with the arc convex surface, and the upper end of the heat dissipation fin body is integrally formed with enhanced heat dissipation blades on both sides; the heat dissipation fin body and the enhanced heat dissipation blades all extend to the end portions at both ends of the heat dissipation block body along the length direction of the heat dissipation block body.

[0023] In a second aspect, a working method of a fire extinguishing system utilizing semiconductor power generation comprises the following steps:

[0024] The heat conductor is used to collect the heat generated in the cabinet body, and the collected heat is used to heat the hot end heat receiving surface of the thermoelectric power generation piece; at the same time, the heat sink is used to dissipate heat and cool the cold end heat dissipation surface of the thermoelectric power generation piece.

[0025] When the temperature difference between the hot end heat receiving surface and the cold end heat dissipating surface of the thermoelectric power generation sheet exceeds a preset power generation temperature, the thermoelectric power generation sheet starts to generate power and supplies power to the control circuit through the thermoelectric power generation sheet.

[0026] When it is detected that the temperature difference between the hot end heat receiving surface and the cold end heat dissipating surface exceeds a first temperature difference value or that the temperature in the cabinet body exceeds a first temperature value, the control circuit controls the fire extinguishing device to inject fire extinguishing agent into the cabinet body to extinguish the fire.

[0027] Further, the working method further comprises the following steps:

[0028] When it is detected that the temperature difference between the hot end heat receiving surface and the cold end heat dissipating surface exceeds a second temperature difference value or that the temperature in the cabinet body exceeds a second temperature value, the control circuit controls the cooling pump to deliver cooling liquid to the cooling circulation pipeline, so as to cool the interior of the cabinet body; wherein the second temperature difference value is less than the first temperature difference value or the second temperature value is less than the first temperature value.

[0029] Further, the working method further comprises the following steps:

[0030] When the thermoelectric power generation sheet starts to generate power, the control circuit controls the fan assembly to work, so as to maintain the low temperature of the cold end heat dissipating surface of the thermoelectric power generation sheet.

[0031] By adopting the technical scheme of the present application, at least the following beneficial effects are achieved:

[0032] 1. By designing the fire extinguishing system with the thermoelectric power generation device, the thermoelectric power generation device comprises the thermoelectric power generation sheet with the hot end heat receiving surface and the cold end heat dissipating surface, the heat conductor and the heat sink, the heat conductor is arranged in the interior of the cabinet body, and the heat sink is arranged outside the cabinet body, so that when a large amount of heat is generated in the cabinet body due to heat dissipation of electrical products, fire, etc., the heat conductor can collect the heat generated in the cabinet body and transfer it to the hot end heat receiving surface of the thermoelectric power generation sheet, and at the same time, the heat sink can dissipate heat from the cold end heat dissipating surface of the thermoelectric power generation sheet, so that the thermoelectric power generation sheet can generate power by using the temperature difference between the hot end heat receiving surface and the cold end heat dissipating surface, and provide the required working power for the control circuit, the fire extinguishing device and other equipment, so that the control circuit, the fire extinguishing device and other equipment no longer rely on external power supply, thereby ensuring that the control circuit, the fire extinguishing device and other equipment can work normally when the external power supply is disconnected, and the normal functions of the control circuit, the fire extinguishing device and other equipment are not affected by the disconnection of the external power supply, and the entire fire extinguishing system can stably and reliably operate when a fire occurs.

[0033] 2. The thermoelectric power generation device directly utilizes the heat generated inside the cabinet to generate electricity, which can effectively recover and utilize the heat generated inside the cabinet and avoid heat waste. At the same time, if the heat inside the cabinet is directly discharged, it will cause the temperature around the cabinet to rise and affect the environment around the cabinet. This invention can reduce the impact on the environment around the cabinet by recovering and utilizing the heat generated inside the cabinet.

[0034] 3. The fire extinguishing system is designed to include a cooling tower, a cooling pump, and cooling circulation pipes. The cooling circulation pipes are located inside the server rack, while the cooling tower and cooling pump are located outside the server rack. This allows the cooling pump to draw coolant from the cooling tower and circulate it within the cooling circulation pipes when the temperature inside the server rack becomes too high. This effectively cools the interior of the server rack and reduces the risk of fire caused by overheating. Furthermore, the cooling pump is powered by a thermoelectric generator, eliminating the need for an external power source and ensuring stable and reliable operation of the cooling system.

[0035] 4. The thermoelectric semiconductor power generation device is designed to include an insulating heat insulation layer, and a through hole for assembling the power generation chip is formed in the middle of the insulating heat insulation layer. A first step and a second step are formed at both ends of the through hole for assembling the power generation chip, so that in actual use, the thermoelectric semiconductor power generation chip, the second contact plane of the heat sink and the first contact plane of the heat conductor can all be covered in the insulating heat insulation layer. In this way, the insulating heat insulation layer can be used to provide insulation and to block heat, ensuring that the heat collected by the heat conductor is not easily lost.

[0036] 5. By designing a heat conductor including a heat-conducting block body, a vertical heat collection area is formed below the bottom of the heat-conducting block body, and several first heat-conducting blades are arranged within the vertical heat collection area. The first heat-conducting blades are arranged perpendicular to each other with the first contact plane. At the same time, horizontal heat collection areas are formed on both sides of the vertical heat collection area, and several second heat-conducting blades are arranged within the horizontal heat collection areas. The second heat-conducting blades are arranged parallel to each other with the first contact plane. This allows the heat conductor to collect heat from both the vertically flowing hot airflow and the horizontally flowing hot airflow during operation. The collected heat is then transferred to the heated surface of the thermoelectric generator through the first contact plane. Therefore, this heat conductor can effectively collect the heat generated inside the cabinet, thus providing reliable heat for the power generation of the thermoelectric generator.

[0037] 6、By designing the heat dissipation block body of the heat sink to have a second contact plane that is in contact with the cold end heat dissipation surface of the thermoelectric power generation sheet, the arc-shaped convex surface is formed on the side of the heat dissipation block body away from the second contact plane, and a plurality of heat dissipation pieces are arranged at intervals on the arc-shaped convex surface, which can effectively increase the heat dissipation surface and ensure that the heat sink has better heat dissipation effect; at the same time, the heat dissipation piece includes a heat dissipation fin body, one end of the heat dissipation fin body is fixedly connected with the arc-shaped convex surface, and the other end of the heat dissipation fin body is integrally formed with reinforcing heat dissipation blades on both sides, that is, the entire heat dissipation piece has a "Y" shaped structure, which can facilitate the circulation of air flow and has a large overall heat dissipation area, so that a large amount of heat can be taken away and the heat dissipation effect is improved.

[0038] 7、By arranging a plurality of honeycomb holes in the middle of the heat dissipation block body, on the one hand, the structure of the honeycomb holes can ensure that the entire heat dissipation block body has high structural strength, and on the other hand, the heat dissipation area can be increased and the heat dissipation effect can be improved; at the same time, a plurality of cooling liquid filling holes are also arranged through the heat dissipation block body, so that cooling liquid can be filled into the heat dissipation block body through the cooling liquid filling holes during specific use, so that the cooling liquid can be used to cool the heat sink, which can further improve the heat dissipation effect of the entire heat sink. BRIEF DESCRIPTION OF DRAWINGS

[0039] The application will be further described below with reference to the embodiments and the accompanying drawings.

[0040] Figure 1 is the overall structure diagram of the fire extinguishing system using semiconductor power generation of the application;

[0041] Figure 2 is the perspective view of the fire extinguishing system using semiconductor power generation of the application;

[0042] Figure 3 is the front view of the thermoelectric power generation device in the application;

[0043] Figure 4 is the perspective view of the thermoelectric power generation device in the application;

[0044] Figure 5 is the structure diagram of the thermoelectric power generation sheet in the application;

[0045] Figure 6 is the sectional view of the insulating and heat insulating layer in the application;

[0046] Figure 7 is the perspective view of the heat conduction device in the application;

[0047] Figure 8 is the front view of the heat conduction device in the application;

[0048] Figure 9 is the perspective view of the heat sink in the application;

[0049] Figure 10 is the front view of the heat sink in the present application;

[0050] Figure 11 is the structural schematic view of the first fixing sheet in the present application;

[0051] Figure 12 is the structural schematic view of the second fixing sheet in the present application.

[0052] Explanation of reference signs:

[0053] Fire extinguishing system 100;

[0054] Cabinet body 1;

[0055] Thermoelectric power generation device 2, thermoelectric power generation sheet 21, hot end heat receiving surface 211, cold end heat radiating surface 212, heat conducting device 22, first contact plane 221, second assembly hole 222, heat conducting block body 223, obliquely extending plate 2231, vertical heat collecting area 2232, first heat conducting blade 2233, horizontal heat collecting area 2234, second heat conducting blade 2235, heat sink 23, second contact plane 231, first assembly hole 232, heat radiating block body 233, heat radiating member 234, heat radiating fin main body 2341, enhanced heat radiating blade 2342, arc convex surface 235, honeycomb hole 236, cooling liquid filling hole 237, shaft hole 238, fan assembly 24, driving motor 241, driving shaft body 242, fan blade 243, insulation and heat insulation layer 25, power generation sheet assembly through hole 251, first step 252, second step 253, assembly component 26, first fixing sheet 261, first sheet body 2611, second sheet body 2612, first reinforcing rib 2613, second fixing sheet 262, third sheet body 2621, fourth sheet body 2622, second reinforcing rib 2623, fixing bolt 263, fixing nut 264;

[0056] Control circuit 3, signal antenna 31;

[0057] Fire extinguishing device 4, fire extinguishing agent nozzle 41;

[0058] Cooling device 5, cooling tower 51, cooling pump 52, cooling circulation pipeline 53. DETAILED DESCRIPTION

[0059] In order to better understand the technical solutions of the present application, the technical solutions of the present application will be described in detail below in combination with the drawings in the specification and specific embodiments.

[0060] It is to be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing these embodiments and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation. In addition, the terms "first", "second" and the like are only for the purpose of description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" and the like can explicitly or implicitly include one or more of the features. Embodiment 1

[0061] Please refer to Figures 1 to 12 A preferred embodiment of a fire extinguishing system 100 using semiconductor power generation is shown in the drawings, the fire extinguishing system 100 comprising:

[0062] The cabinet body 1 can be a cabinet used in various existing electrical products. In actual use, heat is generated inside the cabinet body 1 due to environmental factors, heat dissipation factors of various electrical products, etc.

[0063] The thermoelectric power generation device 2 comprises a thermoelectric power generation sheet 21 having a hot end heat receiving surface 211 and a cold end heat dissipation surface 212, a heat conductor 22 and a heat sink 23. The thermoelectric power generation sheet 1 is clamped between the heat conductor 22 and the heat sink 23. The heat conductor 22 is fixed inside the cabinet body 1, and has a first contact plane 221 in contact with the hot end heat receiving surface 211. The heat sink 23 is fixed outside the cabinet body 1, and has a second contact plane 231 in contact with the cold end heat dissipation surface 212. In operation, the heat conductor 22 can collect heat generated inside the cabinet body 1 and transfer the collected heat to the hot end heat receiving surface 211 of the thermoelectric power generation sheet 21 through the first contact plane 221. The heat sink 23 can dissipate heat from the cold end heat dissipation surface 212 of the thermoelectric power generation sheet 21, so that a temperature difference is generated between the hot end heat receiving surface 211 and the cold end heat dissipation surface 212 of the thermoelectric power generation sheet 21. When the temperature difference exceeds a preset power generation temperature, the thermoelectric power generation sheet 21 can start power generation.

[0064] A control circuit 3 is arranged inside or outside the cabinet body 1, i.e. the control circuit 3 can be arranged inside or outside the cabinet body 1, and the thermoelectric power generation sheet 21 is electrically connected with the control circuit 3, so that the control circuit 3 can be powered after the thermoelectric power generation sheet 21 generates power;

[0065] A fire extinguishing device 4 is arranged in the cabinet body 1, and a fire extinguishing agent nozzle 41 is connected with the fire extinguishing device 4; the fire extinguishing device 4 is electrically connected with the control circuit 3, and in the specific working process, when the thermoelectric power generation sheet 21 starts to generate power and powers the control circuit 3, the control circuit 3 can provide the required working power for the fire extinguishing device 4, so that the control circuit 3 can control the fire extinguishing device 4 to release fire extinguishing agent to extinguish fire when the temperature of the cabinet body 1 is too high or fire occurs.

[0066] By adopting the above technical scheme of the present application, at least the following beneficial effects are achieved:

[0067] 1. By designing the fire extinguishing system 100 to have the thermoelectric power generation device 2, the thermoelectric power generation device 2 includes the thermoelectric power generation sheet 21 having the hot end heat receiving surface 211 and the cold end heat radiating surface 212, the heat conductor 22 and the heat radiator 23, the heat conductor 22 is arranged inside the cabinet body 1, and the heat radiator 23 is arranged outside the cabinet body 1, so that when a large amount of heat is generated in the cabinet body 1 due to heat dissipation of electrical products, fire, etc., the heat conductor 22 can collect the heat generated in the cabinet body 1 and transfer the heat to the hot end heat receiving surface 211 of the thermoelectric power generation sheet 21, and the heat radiator 23 can radiate heat from the cold end heat radiating surface 212 of the thermoelectric power generation sheet 21, so that the thermoelectric power generation sheet 21 can generate power by using the temperature difference between the hot end heat receiving surface 211 and the cold end heat radiating surface 212, and provide the required working power for the control circuit 3, the fire extinguishing device 4 and other devices, so that the control circuit 3, the fire extinguishing device 4 and other devices no longer rely on external power supply, thereby ensuring that the control circuit 3, the fire extinguishing device 4 and other devices can work normally when the external power supply is disconnected, and the normal functions of the control circuit 3, the fire extinguishing device 4 and other devices will not be affected by the disconnection of the external power supply, and further ensuring that the entire fire extinguishing system 100 can stably and reliably operate when fire occurs.

[0068] 2. The thermoelectric power generation device 2 directly generates power by using the heat generated in the cabinet body 1, which can well realize recycling of the heat generated in the cabinet body 1 and avoid waste of heat; meanwhile, if the heat in the cabinet body 1 is directly discharged, the temperature around the cabinet body 1 will rise and affect the environment around the cabinet body 1, but the present application can reduce the impact on the environment around the cabinet body 1 by recycling the heat generated in the cabinet body 1.

[0069] In the preferred embodiment of the present application, please refer to Figure 1 As shown in the figure, in order to facilitate the internal cooling of the cabinet body 1 when the temperature is too high, the fire extinguishing system 100 further comprises a cooling device 5;

[0070] The cooling device 5 comprises a cooling tower 51, a cooling pump 52 and a cooling circulation pipeline 53; the cooling tower 51 and the cooling pump 52 are arranged outside the cabinet body 1, and the cooling circulation pipeline 53 is arranged inside the cabinet body 1; the bottom of the cooling tower 51 is connected with the cooling pump 52, the cooling pump 52 is connected with one end of the cooling circulation pipeline 53, and the other end of the cooling circulation pipeline 53 is connected with the upper part of the cooling tower 51; the cooling pump 52 is electrically connected with the control circuit 3. In the specific work, the cooling device 5 can control the cooling pump 52 to work by using the control circuit 3, so that the cooling pump 52 sucks the cooling liquid from the cooling tower 51 and sends it to the cooling circulation pipeline 53. Since the cooling circulation pipeline 53 is arranged in the cabinet body 1, the cooling liquid can be heat-exchanged and cooled when passing through the cooling circulation pipeline 53, thereby cooling the inside of the cabinet body 1.

[0071] The present application has a cooling tower 51, a cooling pump 52 and a cooling circulation pipeline 53 in the fire extinguishing system 100, and the cooling circulation pipeline 53 is arranged in the cabinet body 1, and the cooling tower 51 and the cooling pump 52 are arranged outside the cabinet body 1. When the temperature in the cabinet body 1 is too high, the cooling pump 52 can be controlled by the control circuit 3 to suck the cooling liquid from the cooling tower 51, and the cooling liquid can circulate in the cooling circulation pipeline 53, thereby effectively cooling the inside of the cabinet body 1 and reducing the risk of fire caused by high temperature. At the same time, the cooling pump 52 is powered by the temperature difference semiconductor power generation device 2, and does not need to rely on external power supply, thereby ensuring that the cooling device 5 can operate stably and reliably.

[0072] In the preferred embodiment of the present application, please refer to Figure 3 and Figure 4 As shown in the figure, in order to improve the heat dissipation efficiency of the heat sink 23, the temperature difference semiconductor power generation device 2 further comprises a fan assembly 24;

[0073] The fan assembly 24 comprises a driving motor 241, a driving shaft 242 and a fan blade 243; the driving shaft 242 penetrates the radiator 23 along the length direction of the radiator 23, one end of the driving shaft 242 is connected with the fan blade 243, and the other end of the driving shaft 242 is connected with the driving motor 241; the driving motor 241 is electrically connected with the control circuit 3. Specifically, the radiator 23 is provided with a shaft hole 238 penetrating along the length direction, and the driving shaft 242 penetrates the radiator 23 through the shaft hole 238. When the thermoelectric power generation sheet 21 starts to generate electricity and supply power to the control circuit 3, the control circuit 3 controls the driving motor 241 to drive the driving shaft 242, and the driving shaft 242 drives the fan blade 243 to rotate, so as to blow cold air to the radiator 23 and improve the heat dissipation efficiency of the radiator 23.

[0074] In the preferred embodiment of the present application, please refer to Figure 6 As shown in the figure, the thermoelectric power generation device 2 further comprises an insulating and heat-insulating layer 25 made of insulating and heat-insulating material; a power generation sheet assembly through hole 251 is provided in the middle of the insulating and heat-insulating layer 25, so as to facilitate the installation of the thermoelectric power generation sheet 21 into the insulating and heat-insulating layer 25; a first step 252 is formed at one end of the power generation sheet assembly through hole 251, and a second step 253 is formed at the other end of the power generation sheet assembly through hole 251.

[0075] The thermoelectric power generation sheet 21 is assembled in the power generation sheet assembly through hole 251; the cold end heat dissipation surface 212 of the thermoelectric power generation sheet 21 is flush with the step surface of the first step 252, and the second contact surface 231 of the radiator 23 is in contact with the step surface of the first step 252 and the cold end heat dissipation surface 212; the hot end heat receiving surface 211 of the thermoelectric power generation sheet 21 is flush with the step surface of the second step 253, and the first contact surface 221 of the heat conduction device 22 is in contact with the step surface of the second step 253 and the hot end heat receiving surface 211.

[0076] The present application designs the thermoelectric power generation device 2 to further comprise an insulating and heat-insulating layer 25, and the middle of the insulating and heat-insulating layer 25 is provided with a power generation sheet assembly through hole 251, and a first step 252 and a second step 253 are respectively formed at both ends of the power generation sheet assembly through hole 251, so that in specific use, the thermoelectric power generation sheet 21, the second contact surface 231 of the radiator 23 and the first contact surface 221 of the heat conduction device 22 can all be covered in the insulating and heat-insulating layer 25, which can not only play an insulating role, but also play a role in blocking heat, so as to ensure that the heat collected by the heat conduction device 22 is not easily lost.

[0077] In the preferred embodiment of the present application, please refer to Figure 3 、 Figure 4 、 Figure 11 and Figure 12 In order to reliably assemble the heat sink 23, the insulation layer 25, the thermoelectric power generation sheet 21 and the heat conductor 22 together, the thermoelectric power generation device 2 further comprises an assembly component 26.

[0078] The assembly component 26 comprises a first fixing sheet 261, a second fixing sheet 262, a plurality of fixing bolts 263 and a plurality of fixing nuts 264. The first fixing sheet 261 penetrates the heat sink 23 along the length direction of the heat sink 23, the second fixing sheet 262 penetrates the heat conductor 22 along the length direction of the heat conductor 22, and the two ends of the first fixing sheet 261 and the second fixing sheet 262 are locked together by the fixing bolts 263 and the fixing nuts 264, so that the thermoelectric power generation sheet 21 can be clamped between the heat sink 23 and the heat conductor 22.

[0079] The insulation layer 25 is tightly attached to the outer wall of the cabinet body 1, the fixing bolts 263 sequentially pass through the first fixing sheet 261, the insulation layer 25, the cabinet wall of the cabinet body 1 and the second fixing sheet 262 from top to bottom, and the two ends of the first fixing sheet 261 and the second fixing sheet 262 are respectively provided with at least two fixing bolts 263 and at least two fixing nuts 264, so that the heat sink 23, the thermoelectric power generation sheet 21 and the heat conductor 22 can be better and more reliably locked and fixed together.

[0080] More specifically, the surfaces of the first fixing sheet 261 and the second fixing sheet 262 are provided with a heat-conducting insulation layer (not shown). Since the first fixing sheet 261 and the second fixing sheet 262 are only used to lock and fix the heat sink 23, the thermoelectric power generation sheet 21 and the heat conductor 22 together, by designing the surfaces of the first fixing sheet 261 and the second fixing sheet 262 to have a heat-conducting insulation layer, heat transfer to the first fixing sheet 261 and the second fixing sheet 262 can be avoided, thereby reducing heat loss.

[0081] More specifically, in order to better lock and fix the heat sink 23, the thermoelectric power generation sheet 21 and the heat conductor 22 together and ensure the strength of the first fixing sheet 261 and the second fixing sheet 262, two first assembly holes 232 are formed through the heat sink 23, and two second assembly holes 222 are formed through the heat conductor 22; the first fixing sheet 261 comprises a first sheet body 2611 and a second sheet body 2612, one end of the first sheet body 2611 and the second sheet body 2612 is integrally and fixedly connected together, the other end of the first sheet body 2611 and the second sheet body 2612 passes through the heat sink 23 through the first assembly hole 232, and the surface of the first sheet body 2611 and the second sheet body 2612 is provided with a first reinforcing rib 2613; the second fixing sheet 262 comprises a third sheet body 2621 and a fourth sheet body 2622, one end of the third sheet body 2621 and the fourth sheet body 2622 is integrally and fixedly connected together, the other end of the third sheet body 2621 and the fourth sheet body 2622 passes through the heat conductor 22 through the second assembly hole 222, and the surface of the third sheet body 2621 and the fourth sheet body 2622 is provided with a second reinforcing rib 2623.

[0082] In the preferred embodiment of the present application, please refer to Figure 7 and Figure 8 , the heat conductor 22 comprises a heat conduction block body 223, the top of the heat conduction block body 223 forms the first contact plane 221; the bottom of the heat conduction block body 223 extends downward to be provided with two inclined extension plates 2231 at both ends, specifically, the inclined extension plates 2231 are gradually inclined outward from top to bottom; the bottom of the heat conduction block body 223 and the two inclined extension plates 2231 form a vertical heat collection area 2232 which gradually expands from top to bottom, a plurality of first heat conduction blades 2233 are arranged at intervals in the vertical heat collection area 2232, and each first heat conduction blade 2233 is arranged perpendicular to the first contact plane 221; because the vertical heat collection area 2232 gradually expands from top to bottom, more first heat conduction blades 2233 can be arranged in the vertical heat collection area 2232, thereby improving the heat collection effect.

[0083] The outer sides of the two inclined extension plates 2231 are formed with horizontal heat collection areas 2234, a plurality of second heat conduction blades 2235 are arranged at intervals in the horizontal heat collection areas 2234, and each second heat conduction blade 2235 is arranged parallel to the first contact plane 221; the inclined extension plates 2231, the first heat conduction blades 2233 and the second heat conduction blades 2235 all extend to the end portions of the heat conduction block body 223 at both ends along the length direction of the heat conduction block body 223, so that the area of the first heat conduction blades 2233 and the second heat conduction blades 2235 can be increased, thereby improving the heat collection effect.

[0084] The present application designs the heat conducting device 22 to include a heat conducting block body 223, a vertical heat collecting area 2232 is formed below the bottom of the heat conducting block body 223, and a plurality of first heat conducting fins 2233 are arranged in the vertical heat collecting area 2232, the first heat conducting fins 2233 are arranged perpendicularly to the first contact plane 221; meanwhile, horizontal heat collecting areas 2234 are formed on both sides of the vertical heat collecting area 2232, and a plurality of second heat conducting fins 2235 are arranged in the horizontal heat collecting areas 2234, the second heat conducting fins 2235 are arranged parallel to the first contact plane 221, so that in specific operation, the vertical flowing hot air can be collected by the first heat conducting fins 2233, and the horizontal flowing hot air can be collected by the second heat conducting fins 2235, and the collected heat is transmitted to the hot end heating surface 211 of the thermoelectric power generation sheet 21 through the first contact plane 221, thus the heat conducting device 22 can effectively collect the heat generated in the cabinet body 1, and provide reliable heat for the power generation of the thermoelectric power generation sheet 21.

[0085] As a specific embodiment of the present application, the upper ends of a part of the first heat conducting fins 2233 are fixedly connected with the bottom of the heat conducting block body 223, the upper ends of another part of the first heat conducting fins 2233 are fixedly connected with the inner side of the inclined extension plate 2231, and the lower ends of the first heat conducting fins 2233 are on the same horizontal straight line; one end of each of the second heat conducting fins 2235 is fixedly connected with the outer side of the inclined extension plate 2231, and the free ends of the second heat conducting fins 2235 on the same side are on the same vertical straight line, so that the appearance of the whole heat conducting device 22 is more neat and beautiful.

[0086] In the preferred embodiment of the present application, please refer to Figure 9 and Figure 10 The heat sink 23 includes a heat radiating block body 233 and a plurality of heat radiating members 234, the bottom of the heat radiating block body 233 forms the second contact plane 231; the top of the heat radiating block body 233 is formed with an arc convex surface 235, and the heat radiating members 234 are arranged on the arc convex surface 235 at intervals;

[0087] Each of the heat radiating members 234 includes a heat radiating fin body 2341, the lower end of the heat radiating fin body 2341 is fixedly connected with the arc convex surface 235, and the upper end of the heat radiating fin body 2341 is integrally formed with enhanced heat radiating fins 2342 on both sides; the heat radiating fin body 2341 and the enhanced heat radiating fins 2342 extend to the ends of the heat radiating block body 233 along the length direction of the heat radiating block body 233.

[0088] The application can effectively increase the heat dissipation surface, ensure that the heat sink 23 has better heat dissipation effect, and the heat dissipation piece 234 comprises a heat dissipation fin body 2341, one end of the heat dissipation fin body 2341 is fixedly connected with the arc convex surface 235, and the other end of the heat dissipation fin body 2341 is integrally formed with a reinforcing heat dissipation blade 2342 on both sides, that is, the whole heat dissipation piece 234 has a "Y" shape structure, which can facilitate the circulation of airflow, has large overall heat dissipation area, can take away a large amount of heat, and improves the heat dissipation effect.

[0089] More specifically, the middle part of the heat dissipation block body 233 is provided with a plurality of honeycomb holes 236 and a plurality of cooling liquid filling holes 237, and each honeycomb hole 236 penetrates the heat dissipation block body 233 along the length direction of the heat dissipation block body 233; each cooling liquid filling hole 237 penetrates the heat dissipation block body 233 along the length direction of the heat dissipation block body 233, and each cooling liquid filling hole 237 is provided with a sealing plug (not shown) at both ends, and after the cooling liquid is filled into the heat dissipation block body 233 through the cooling liquid filling hole 237, the end of the cooling liquid filling hole 237 can be plugged by the sealing plug, so that the cooling liquid cannot flow out from the end of the cooling liquid filling hole 237. The application penetrates a plurality of honeycomb holes 236 in the middle part of the heat dissipation block body 233, which can not only ensure that the whole heat dissipation block body 233 has high structural strength, but also increase the heat dissipation area and improve the heat dissipation effect; meanwhile, a plurality of cooling liquid filling holes 237 are also penetrated in the heat dissipation block body 233, so that the cooling liquid can be filled into the heat dissipation block body 233 through the cooling liquid filling hole 237 during specific use, so as to cool the heat sink 23 by using the cooling liquid, which can further improve the heat dissipation effect of the whole heat sink 23.

[0090] In specific implementation, the cooling liquid filling hole 237 can also not penetrate the heat dissipation block body 233, so that only the sealing plug needs to be arranged at one end of the cooling liquid filling hole 237, and the sealing plug does not need to be arranged at both ends of the cooling liquid filling hole 237; meanwhile, the number of the cooling liquid filling hole 237 can be set as required, for example, 8-10 cooling liquid filling holes 237 can be arranged.

[0091] In the preferred embodiment of the present application, the fire extinguishing device 4 can adopt an internal storage pressure type fire extinguishing device or a pressureless fire extinguishing device; wherein the internal storage pressure type fire extinguishing device adopts electromagnetic starting, and uses internal nitrogen as driving gas to drive the release of fire extinguishing agent; the pressureless fire extinguishing device adopts electrically initiated hot aerosol to generate a large amount of pressure gas, and then uses the pressure gas to drive the release of fire extinguishing agent; no matter whether the internal storage pressure type fire extinguishing device or the pressureless fire extinguishing device is adopted, the starting energy comes from the temperature difference semiconductor power generation device 2.

[0092] In the preferred embodiment of the present application, the control circuit 3 adopts a low-power consumption control circuit, and the control circuit 3 is provided with an energy storage capacitor (not shown). By adopting a low-power consumption control circuit as the control circuit 3 of the entire fire extinguishing system 100, the overall power consumption of the entire fire extinguishing system 100 can be reduced, so that only the self-power generation of the temperature difference semiconductor power generation sheet 21 can meet the use requirements; at the same time, the control circuit 3 is also provided with an energy storage capacitor, which can store the electric energy generated by the temperature difference semiconductor power generation sheet 21 in the energy storage capacitor. In addition, the control circuit 3 also has an NB communication function, which can communicate with a mobile phone or a web terminal, so as to realize the display of temperature difference, current, voltage, and fan assembly 24 operation on the mobile phone or web terminal, and also realize the output, feedback, etc. of signals; at the same time, the control circuit 3 is also connected with a signal antenna 31, so as to realize the transmission and reception of signals by using the signal antenna 31. Embodiment 2

[0093] Please refer to Figures 1 to 12 The working method of the fire extinguishing system 100 using semiconductor power generation, wherein the specific structure of the fire extinguishing system 100 please refer to the detailed introduction of embodiment 1, here will not repeat; the working method comprises the following steps:

[0094] The heat generated in the cabinet body 1 is collected by the heat conductor 22, and the collected heat is used to heat the hot end heat receiving surface 211 of the temperature difference semiconductor power generation sheet 21; at the same time, the cold end heat dissipation surface 212 of the temperature difference semiconductor power generation sheet 21 is cooled by the heat sink 23; because various electrical products are placed in the cabinet body 1, the self-heat dissipation of various electrical products will generate heat in the cabinet body 1, especially when the protection area thermal runaway occurs in the cabinet body 1 or a fire occurs, a large amount of heat will be generated in the cabinet body 1; the heat conductor 22 is arranged in the cabinet body 1, so that the heat generated in the cabinet body 1 can be collected by the heat conductor 22 and provided to the temperature difference semiconductor power generation sheet 21 during work, so that the temperature difference semiconductor power generation sheet 21 can generate electricity by using temperature difference;

[0095] When the temperature difference between the hot end heat receiving surface 211 and the cold end heat radiating surface 212 of the thermoelectric power generation sheet 21 exceeds the preset power generation temperature, the thermoelectric power generation sheet 21 starts to generate power, and the control circuit 3 is powered by the thermoelectric power generation sheet 21, so that the control circuit 3 can work stably and reliably without relying on an external power source; as a specific embodiment of the present application, when the temperature difference between the hot end heat receiving surface 211 and the cold end heat radiating surface 212 of the thermoelectric power generation sheet 21 exceeds 25℃, the thermoelectric power generation sheet 21 starts to generate power;

[0096] When it is detected that the temperature difference between the hot end heat receiving surface 211 and the cold end heat radiating surface 212 exceeds the first temperature difference value or that the temperature in the cabinet body 1 exceeds the first temperature value, the control circuit 3 controls the fire extinguishing device 4 to spray fire extinguishing agent into the cabinet body 1 to extinguish the fire, thereby reducing the loss caused by the fire. In the specific embodiment of the present application, the first temperature difference value or the first temperature value can be set according to actual needs, and when the first temperature difference value is used for judgment, a temperature sensor does not need to be additionally arranged in the cabinet body 1, and the temperature difference between the hot end heat receiving surface 211 and the cold end heat radiating surface 212 of the thermoelectric power generation sheet 21 can be directly used for judgment; when the first temperature value is used for judgment, a temperature sensor needs to be additionally arranged in the cabinet body 1 to monitor the temperature in the cabinet body 1 by using the temperature sensor.

[0097] In the preferred embodiment of the present application, the working method further includes the following steps:

[0098] When the temperature difference between the hot end heating surface 211 and the cold end radiating surface 212 is detected to exceed a second temperature difference value or the temperature in the cabinet body 1 is detected to exceed a second temperature value, the control circuit 3 controls the cooling pump 52 to deliver cooling liquid to the cooling circulation pipeline 53, so as to cool the interior of the cabinet body 1; wherein the second temperature difference value is less than the first temperature difference value or the second temperature value is less than the first temperature value. In the specific implementation of the present application, the second temperature difference value or the second temperature value can be set according to the actual situation, and when the second temperature difference value is used for judgment, it is not necessary to additionally set a temperature sensor in the cabinet body 1, and the temperature difference between the hot end heating surface 211 and the cold end radiating surface 212 of the thermoelectric power generation sheet 21 can be directly used for judgment; and when the second temperature value is used for judgment, a temperature sensor needs to be additionally set in the cabinet body 1 to monitor the temperature in the cabinet body 1 by using the temperature sensor. For example, when the temperature sensor is used for monitoring, the first temperature value can be set to 75℃, and the second temperature value can be set to 95℃. By controlling the cooling pump 52 to deliver cooling liquid to the cooling circulation pipeline 53 when the temperature difference between the hot end heating surface 211 and the cold end radiating surface 212 exceeds the second temperature difference value or the temperature in the cabinet body 1 is detected to exceed the second temperature value, the interior of the cabinet body 1 can be cooled, and the probability of fire caused by high temperature can be effectively reduced.

[0099] In the preferred embodiment of the present application, the working method further comprises the following steps:

[0100] When the thermoelectric power generation sheet 21 starts to generate electricity, the control circuit 3 controls the fan assembly 24 to work, so as to maintain the cold end radiating surface 212 of the thermoelectric power generation sheet 21 at a low temperature, and ensure that the thermoelectric power generation sheet 21 can better utilize the temperature difference to generate electricity.

[0101] Although the specific embodiments of the present application are described above, those skilled in the art should understand that the specific embodiments described are only illustrative, and are not used to limit the scope of the present application, and equivalent modifications and changes made by those skilled in the art in accordance with the spirit of the present application should be covered within the scope of the claims of the present application.

Claims

1. A fire extinguishing system utilizing semiconductor power generation, characterized in that: The fire extinguishing system includes: The rack itself; A thermoelectric power generation device includes a thermoelectric generator chip with a hot-end heating surface and a cold-end heat dissipation surface, a heat conductor, and a heat sink. The thermoelectric generator chip is sandwiched between the heat conductor and the heat sink. The heat conductor is fixed inside the cabinet body and has a first contact plane that contacts the hot-end heating surface. The heat sink is fixed outside the cabinet body and has a second contact plane that contacts the cold-end heat dissipation surface. The thermoelectric power generation device also includes an insulating heat insulation layer. A through-hole for assembling a power-generating chip is provided in the middle. A first step is formed at one end of the through-hole, and a second step is formed at the other end. A thermoelectric power-generating chip is assembled in the through-hole. The cold end heat dissipation surface of the thermoelectric power-generating chip is flush with the step surface of the first step. The second contact plane of the heat sink is in close contact with the step surface of the first step and the cold end heat dissipation surface. The hot end heat-receiving surface of the thermoelectric power-generating chip is flush with the step surface of the second step. The first contact plane of the heat conductor is in close contact with the step surface of the second step and the hot end heat-receiving surface. The radiator includes a heat sink body, with several honeycomb holes and several coolant filling holes in the middle of the heat sink body. Each honeycomb hole penetrates the heat sink body along its length. Each coolant filling hole penetrates the heat sink body along its length, and each coolant filling hole is equipped with a sealing plug at both ends. A control circuit is provided, which is located inside or outside the cabinet body, and the thermoelectric generator is electrically connected to the control circuit. The fire extinguishing device includes a fire extinguishing agent nozzle installed inside the cabinet body, which is connected to the fire extinguishing device; the fire extinguishing device is electrically connected to the control circuit.

2. A fire extinguishing system utilizing semiconductor power generation as described in claim 1, characterized in that: It also includes a cooling device; The cooling device includes a cooling tower, a cooling pump, and a cooling circulation pipe; the cooling tower and the cooling pump are both located outside the cabinet body, and the cooling circulation pipe is located inside the cabinet body; the bottom of the cooling tower is connected to the cooling pump, the cooling pump is connected to one end of the cooling circulation pipe, and the other end of the cooling circulation pipe is connected to the top of the cooling tower; the cooling pump is electrically connected to the control circuit.

3. A fire extinguishing system utilizing semiconductor power generation as described in claim 1, characterized in that: The thermoelectric power generation device also includes a fan assembly; The fan assembly includes a drive motor, a drive shaft, and fan blades; the drive shaft passes through the heat sink along its length, one end of the drive shaft is connected to the fan blades, and the other end of the drive shaft is connected to the drive motor; the drive motor is electrically connected to a control circuit.

4. A fire extinguishing system utilizing semiconductor power generation as described in claim 1, characterized in that: The thermoelectric semiconductor power generation device also includes assembly components; The assembly includes a first fixing plate, a second fixing plate, a plurality of fixing bolts, and a plurality of fixing nuts; the first fixing plate passes through the radiator along the length of the radiator, and the second fixing plate passes through the heat conductor along the length of the heat conductor; the two ends of the first fixing plate and the second fixing plate are locked together by the fixing bolts and fixing nuts. The insulating and heat-insulating layer is closely attached to the outer wall of the cabinet body, and the fixing bolts pass through the first fixing plate, the insulating and heat-insulating layer, the cabinet wall of the cabinet body and the second fixing plate from top to bottom.

5. A fire extinguishing system utilizing semiconductor power generation as described in claim 1, characterized in that: The heat conductor includes a heat-conducting block body, the top of which forms the first contact plane; inclined extension plates extend downward from both ends of the bottom of the heat-conducting block body, and a vertical heat collection area that gradually expands from top to bottom is formed between the bottom of the heat-conducting block body and the two inclined extension plates. Several first heat-conducting blades are spaced apart within the vertical heat collection area, and each first heat-conducting blade is perpendicular to the first contact plane; a horizontal heat collection area is formed on the outer side of each of the two inclined extension plates, and several second heat-conducting blades are spaced apart within the horizontal heat collection area, and each second heat-conducting blade is parallel to the first contact plane; the inclined extension plates, the first heat-conducting blades, and the second heat-conducting blades all extend along the length direction of the heat-conducting block body to the ends of both ends of the heat-conducting block body.

6. A fire extinguishing system utilizing semiconductor power generation as described in claim 1, characterized in that: The radiator also includes several heat dissipation components, the bottom of the heat dissipation block body forms the second contact plane, and the top of the heat dissipation block body forms an arc-shaped convex surface; Each heat sink component includes a heat sink body, the lower end of which is fixedly connected to an arc-shaped convex surface, and reinforcing heat dissipation blades integrally formed on both sides of the upper end of the heat sink body; the heat sink body and the reinforcing heat dissipation blades both extend along the length direction of the heat sink body to the ends of both ends of the heat sink body.

7. A method of operating a fire extinguishing system utilizing semiconductor power generation as described in any one of claims 1-6, characterized in that: The working method includes the following steps: The heat conductor is used to collect the heat generated inside the cabinet body, and the collected heat is used to heat the hot end of the thermoelectric generator; at the same time, the heat sink is used to cool the cold end of the thermoelectric generator. When the temperature difference between the hot end and the cold end of the thermoelectric generator exceeds the preset power generation temperature, the thermoelectric generator starts to generate electricity and supplies power to the control circuit through the thermoelectric generator. When the temperature difference between the hot end heating surface and the cold end heat dissipation surface exceeds the first temperature difference value, or when the temperature inside the cabinet body exceeds the first temperature value, the control circuit controls the fire extinguishing device to spray fire extinguishing agent into the cabinet body to extinguish the fire.

8. The operating method of a fire extinguishing system utilizing semiconductor power generation as described in claim 7, characterized in that: The working method also includes the following steps: When the temperature difference between the heated surface and the cooled surface exceeds the second temperature difference value, or when the temperature inside the cabinet body exceeds the second temperature value, the control circuit controls the cooling pump to deliver coolant to the cooling circulation pipe, thereby cooling the inside of the cabinet body; wherein the second temperature difference value is less than the first temperature difference value or the second temperature value is less than the first temperature value.

9. The operating method of a fire extinguishing system utilizing semiconductor power generation as described in claim 7, characterized in that: The working method also includes the following steps: When the thermoelectric generator starts generating electricity, the control circuit controls the fan assembly to operate, so that the cold end heat dissipation surface of the thermoelectric generator is kept at a low temperature.

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