Vehicle-mounted power battery box fire suppression and integrated energy saving system and method of use thereof

Abstract

The application discloses a kind of vehicle-mounted power battery box fire suppression and integrated energy-saving system and its use method in the technical field of power battery, sensor module is equipped in the battery box of the system, the battery box is communicated with pressure stabilizing system by gas path, the pressure stabilizing system is communicated with nitrogen device by gas path, the nitrogen device is communicated with heating module by gas path, the heating module is communicated with dryer by gas path, the dryer is communicated with whole vehicle auxiliary gas cylinder by gas path, the left end of the whole vehicle auxiliary gas cylinder is equipped with total electromagnetic valve, the fire extinguishing device used in the battery box of current existing new energy vehicle is solved, belongs to passive safety, easy to bring greater damage to battery and equipment, and the existing battery box fire suppression device only considers fire suppression function when designing and developing, without considering its energy-saving effect, so as to increase the energy consumption of overall device.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of power batteries, in particular to a vehicle-mounted power battery box fire suppression and integrated energy-saving system and a use method thereof. BACKGROUND

[0002] At present, the fire extinguishing device used in the battery box of a new energy vehicle is a passive fire extinguishing action that is performed only after a fire occurs in the power battery box, so the fire extinguishing agent cannot be sprayed in advance to prevent and suppress the fire hazard in the power battery box, and the device belongs to passive safety, which is easy to cause greater damage to the battery and equipment, and when the existing battery box fire suppression device is designed and developed, only the fire suppression function is considered, and the energy-saving effect is not considered, so that the energy consumption of the overall device is increased by more than 30%.

[0003] Therefore, the application designs a vehicle-mounted power battery box fire suppression and integrated energy-saving system to solve the above problems. SUMMARY

[0004] The application aims to provide a vehicle-mounted power battery box fire suppression and integrated energy-saving system to solve the problems that the fire extinguishing device used in the battery box of a new energy vehicle is a passive fire extinguishing action that is performed only after a fire occurs in the power battery box, so the fire extinguishing agent cannot be sprayed in advance to prevent and suppress the fire hazard in the power battery box, and the device belongs to passive safety, which is easy to cause greater damage to the battery and equipment, and when the existing battery box fire suppression device is designed and developed, only the fire suppression function is considered, and the energy-saving effect is not considered, so that the energy consumption of the overall device is increased by more than 30%.

[0005] To achieve the above-mentioned purpose, the application provides the following technical scheme: a vehicle-mounted power battery box fire suppression and integrated energy-saving system, comprising a battery box and a main controller, characterized in that: a sensor module is arranged in the battery box, the battery box is communicated with a pressure stabilizing system through a gas path, the pressure stabilizing system is communicated with a nitrogen device through a gas path, the nitrogen device is communicated with a heating module through a gas path, the heating module is communicated with a dryer through a gas path, the dryer is communicated with a vehicle auxiliary gas cylinder through a gas path, and a total electromagnetic valve is arranged at the left end of the vehicle auxiliary gas cylinder, so that the problems that the fire extinguishing device used in the battery box of a new energy vehicle is a passive fire extinguishing action that is performed only after a fire occurs in the power battery box, so the fire extinguishing agent cannot be sprayed in advance to prevent and suppress the fire hazard in the power battery box, and the device belongs to passive safety, which is easy to cause greater damage to the battery and equipment, and when the existing battery box fire suppression device is designed and developed, only the fire suppression function is considered, and the energy-saving effect is not considered, so that the energy consumption of the overall device is increased by more than 30% are solved.

[0006] As a further scheme of the present application, the battery box is divided into a first battery box and a second battery box, a first electromagnetic valve is arranged on the air path communicated with the voltage stabilizing system of the first battery box, and a second electromagnetic valve is arranged on the air path communicated with the voltage stabilizing system of the second battery box, so that the nitrogen filling of the battery box is more accurate.

[0007] As a further scheme of the present application, the sensor module comprises a hydrogen concentration sensor, a smoke sensor, a VOC sensor, a CO sensor, a temperature sensor, a long-life oxygen concentration sensor and a pressure sensor, so that the conditions in the battery box can be conveniently detected.

[0008] As a further scheme of the present application, the nitrogen device comprises a nitrogen storage bottle, a nitrogen pressure sensor and a nitrogen generating device, the left end of the nitrogen storage bottle is provided with the nitrogen pressure sensor, and the nitrogen storage bottle is communicated with the nitrogen generating device through an air path, so that the nitrogen manufacturing and storage are facilitated.

[0009] As a further scheme of the present application, the total electromagnetic valve, the heating module, the nitrogen device, the first electromagnetic valve, the second electromagnetic valve and the sensor module are electrically connected with the main controller, so that the use of the main controller is facilitated.

[0010] As a further scheme of the present application, the battery box is provided with a balance valve, the balance valve is communicated with the nitrogen device through a recovery air path, the discharged nitrogen can be recycled, the nitrogen use rate is improved, and the energy consumption is further reduced.

[0011] The present application also provides the following technical scheme: a use method of a vehicle-mounted power battery box fire inhibition and integrated energy-saving system, first, necessary parameters are set through a main controller, a high-pressure gas source is provided by a vehicle auxiliary gas cylinder, the main controller determines the remaining nitrogen amount in a nitrogen storage bottle according to a nitrogen pressure sensor, and according to a set control logic, when the measured value of the nitrogen pressure sensor is lower than a set value, the main controller communicates with a total electromagnetic valve, the total electromagnetic valve is opened, the high-pressure gas source filters out water and impurities in the air through a dryer, enters an integrated design heating module, the heating module controls the air in an optimal temperature range, enters a nitrogen generating device, the nitrogen and oxygen in the air are separated, the high-purity nitrogen enters the nitrogen storage bottle, smoke concentration sensors, VOC sensors, CO sensors, temperature sensors, long-life oxygen concentration sensors and pressure sensors in the battery box monitor various parameter indexes in the battery box in real time, the main controller compares the sensor measurement data and parameters in the set logic, comprehensively determines whether the electromagnetic valves connected with different battery boxes are opened, and fills the nitrogen in the nitrogen storage bottle into the corresponding battery box through a unique voltage stabilizing system of the nitrogen.

[0012] Compared with the prior art, the present application has the following advantages:

[0013] The application has the advantages that the application is simple in structure, convenient to use and reasonable in design, the concentration of combustible and fire-retardant gas in the battery box can be inhibited by using nitrogen as an inhibitor in the battery box, the fire in the battery box can be prevented, the number of energy-consuming heating modules is reduced and the overall energy consumption is reduced while ensuring the effectiveness of the fire inhibition function of the overall device by the integrated design of the gas path system, the valve body and the heating module, the utilization rate of high-purity nitrogen in the nitrogen storage bottle can be improved by the setting of the pressure stabilizing system, so that the starting and running time of the electric air compressor is greatly reduced, the energy consumption is reduced, the working time of the overall device is reduced under the premise that the oxygen concentration in the battery box is lower than the critical value and the oxidation reaction that causes smoking and fire is not caused by the setting of the long-life oxygen concentration sensor, so that the energy consumption is reduced, the nitrogen gas discharged by the battery box balance valve can be recycled by the setting of the recycling gas path, the use efficiency of nitrogen gas is improved, and the energy consumption is further reduced. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the application, the following will briefly introduce the drawings needed to be used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0015] Figure 1 It is a schematic diagram of the overall structure of the application.

[0016] Figure 2 It is a schematic diagram of the sensor module of the application.

[0017] Figure 3 It is a schematic diagram of the principle of the application.

[0018] In the drawings, the components represented by each reference numeral are listed as follows:

[0019] Battery box 1, first battery box 101, second battery box 102, main controller 2, sensor module 3, gas path 4, pressure stabilizing system 5, nitrogen device 6, nitrogen storage bottle 61, nitrogen pressure sensor 62, nitrogen device 63, heating module 7, dryer 8, whole vehicle auxiliary gas bottle 9, total electromagnetic valve 10, first electromagnetic valve 11, second electromagnetic valve 12, hydrogen concentration sensor 13, smoke sensor 14, VOC sensor 15, CO sensor 16, temperature sensor 17, long-life oxygen concentration sensor 18, pressure sensor 19. DETAILED DESCRIPTION

[0020] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0021] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application. Figures 1-3 The present application provides a technical solution: a vehicle-mounted power battery box fire suppression and integrated energy-saving system, comprising a battery box 1 and a main controller 2, characterized in that: the battery box 1 is provided with a sensor module 3 for detecting the internal condition of the battery box 1, the battery box 1 is communicated with a pressure stabilizing system 5 through a gas path 4 for facilitating the injection of nitrogen, the pressure stabilizing system 5 is communicated with a nitrogen device 6 through a gas path 4 for facilitating the injection of nitrogen, the nitrogen device 6 is communicated with a heating module 7 through a gas path 4 for heating, the heating module 7 is communicated with a dryer 8 through a gas path 4, the dryer 8 is communicated with a vehicle auxiliary gas cylinder 9 through a gas path 4 for drying, and the left end of the vehicle auxiliary gas cylinder 9 is provided with a total electromagnetic valve 10.

[0022] The present application uses nitrogen as an inhibitor in the battery box 1 to prevent fire in the battery box 1, the integrated design of the gas path 4 system, valve body and heating module 7 reduces energy consumption, the pressure stabilizing system 5 improves nitrogen utilization and reduces energy consumption, and the long-life oxygen concentration sensor 18 can further reduce energy consumption, thereby solving the problem that the existing fire extinguishing device for the battery box of a new energy vehicle can only perform passive fire extinguishing action after fire occurs in the power battery box, cannot prevent and suppress the fire hazard in the power battery box in advance, belongs to passive safety, and is easy to cause greater damage to the battery and equipment, and the existing battery box fire suppression device only considers the fire suppression function in design and development, without considering the energy-saving effect, resulting in increased energy consumption of the overall device.

[0023] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application. Figure 1 The battery box 1 is divided into a first battery box 101 and a second battery box 102, a first electromagnetic valve 11 is arranged on the gas path 4 communicated with the pressure stabilizing system 5 of the first battery box 101, a second electromagnetic valve 12 is arranged on the gas path 4 communicated with the pressure stabilizing system 5 of the second battery box 102, and nitrogen charging of the battery box 1 is more accurate.

[0024] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application. Figures 1-2 The sensor module 3 includes a hydrogen concentration sensor 13, a smoke sensor 14, a VOC sensor 15, a CO sensor 16, a temperature sensor 17, a long-life oxygen concentration sensor 18 and a pressure sensor 19, which can facilitate the detection of the condition in the battery box 1.

[0025] Please refer to Figure 1 The nitrogen device 6 comprises a nitrogen storage bottle 61, a nitrogen pressure sensor 62 and a nitrogen production device 63, the left end of the nitrogen storage bottle 61 is provided with the nitrogen pressure sensor 62, and the nitrogen storage bottle 61 is communicated with the nitrogen production device 63 through the gas circuit 4, so that the production and storage of nitrogen are facilitated.

[0026] Please refer to Figure 1 The total electromagnetic valve 10, the heating module 7, the nitrogen device 6, the first electromagnetic valve 11, the second electromagnetic valve 12 and the sensor module 3 are electrically connected with the main controller 2, so that the use of the main controller 2 is facilitated.

[0027] Please refer to Figure 1 The battery box 1 is provided with a balance valve, the balance valve is communicated with the nitrogen device 6 through the recovery gas circuit 4, the discharged nitrogen can be recycled, the nitrogen utilization rate is improved, and the energy consumption is further reduced.

[0028] The application also provides a technical solution: a use method of a vehicle-mounted power battery box fire suppression and integrated energy-saving system, first, necessary parameters are set through the main controller 2, the vehicle auxiliary gas cylinder 9 provides a high-pressure gas source, the main controller 2 determines the remaining amount of nitrogen in the nitrogen storage bottle 61 according to the nitrogen pressure sensor 62, according to the set control logic, when the measured value of the nitrogen pressure sensor 62 is lower than the set value, the main controller 2 communicates with the total electromagnetic valve 10, the total electromagnetic valve 10 is opened, the high-pressure gas source passes through the dryer 8 to filter out the water and impurities in the air, enters the integrated design heating module 7, the heating module 7 controls the air in the best temperature range, enters the nitrogen production device 63, the nitrogen and oxygen in the air are separated, the high-purity nitrogen enters the nitrogen storage bottle 61, the smoke concentration sensor, the VOC sensor 15, the CO sensor 16, the temperature sensor 17, the long-life oxygen concentration sensor 18 and the pressure sensor 19 in the battery box 1 monitor various parameter indexes in the battery box 1 in real time, the main controller 2 compares the sensor measurement data and the parameters in the set logic, and comprehensively determines whether the electromagnetic valves connected with different battery boxes 1 are opened, and the nitrogen in the nitrogen storage bottle 61 is filled into the corresponding battery box 1 through the unique pressure stabilizing system 5.

[0029] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0030] The preferred embodiments of the application disclosed above are only to facilitate the elucidation of the application. The preferred embodiments do not describe all the details of the application and limit the application to the specific embodiments described. Obviously, many modifications and variations can be made in light of the teachings above. The description is chosen and described in order to best explain the principles of the application and its practical application to thereby enable others skilled in the art to best utilize the application and get the best results from the application. The application is only limited by the claims and their full scope and equivalents.

Claims

1. A vehicle-mounted power battery box fire suppression and integrated energy-saving system, comprising a battery box (1) and a main controller (2), characterized in that: The battery box (1) is provided with a sensor module (3), the battery box (1) is communicated with a pressure stabilizing system (5) through a gas path (4), the pressure stabilizing system (5) is communicated with a nitrogen device (6) through a gas path (4), the nitrogen device (6) is communicated with a heating module (7) through a gas path (4), the heating module (7) is communicated with a dryer (8) through a gas path (4), the dryer (8) is communicated with a whole vehicle auxiliary gas cylinder (9) through a gas path (4), and the left end of the whole vehicle auxiliary gas cylinder (9) is provided with a total electromagnetic valve (10). The battery box (1) is divided into a first battery box (101) and a second battery box (102), a first electromagnetic valve (11) is arranged on the gas path (4) communicated with the pressure stabilizing system (5) of the first battery box (101), and a second electromagnetic valve (12) is arranged on the gas path (4) communicated with the pressure stabilizing system (5) of the second battery box (102). The nitrogen device (6) comprises a nitrogen storage bottle (61), a nitrogen pressure sensor (62) and a nitrogen generating device (63), the left end of the nitrogen storage bottle (61) is provided with the nitrogen pressure sensor (62), and the nitrogen storage bottle (61) is communicated with the nitrogen generating device (63) through a gas path (4). A balance valve is arranged on the battery box (1), the balance valve is communicated with the nitrogen device (6) through a recovery gas path, so that a closed-loop nitrogen circulation is formed.

2. The fire suppression and integrated energy saving system for a vehicle power battery pack of claim 1, wherein: The sensor module (3) comprises a hydrogen concentration sensor (13), a smoke sensor (14), a VOC sensor (15), a CO sensor (16), a temperature sensor (17), a long-life oxygen concentration sensor (18) and a pressure sensor (19).

3. The fire suppression and integrated energy saving system for a vehicle power battery pack of claim 2, wherein: The total electromagnetic valve (10), the heating module (7), the nitrogen device (6), the first electromagnetic valve (11), the second electromagnetic valve (12) and the sensor module (3) are electrically connected with the main controller (2).

4. The use of a fire suppression and integrated energy saving system for a vehicle-mounted power battery box according to any one of claims 1-3, characterized in that: The method is first set by the main controller (2) necessary parameters, the whole vehicle auxiliary gas cylinder (9) provides high pressure gas source, the main controller (2) according to nitrogen pressure sensor (62), judge the remaining nitrogen amount in the nitrogen storage bottle (61), according to the set control logic, when the nitrogen pressure sensor (62) measured value is lower than the set value, the main controller (2) is communicated to the total electromagnetic valve (10), the total electromagnetic valve (10) is opened, the high pressure gas source is filtered through the dryer (8) to remove the moisture and impurities in the air, enters the integrated design heating module (7), the heating module (7) controls the air in the best temperature range, enters the nitrogen making device (63), the nitrogen and oxygen in the air are separated, the high purity nitrogen enters the nitrogen storage bottle (61), the battery box (1) inside smoke concentration sensor, VOC sensor (15), CO sensor (16), temperature sensor (17), long life oxygen concentration sensor (18) and pressure sensor (19), real-time monitoring various parameter indexes in the battery box (1), the main controller (2) is compared according to the sensor measured data and the parameter in the set logic, comprehensive determination whether the electromagnetic valve connected with different battery box (1) is opened, the nitrogen unique pressure stabilizing system (5) in the nitrogen storage bottle (61) is filled in the corresponding battery box (1).

Images