Container, control system and method for transporting batteries

Abstract

The invention discloses a container for transporting batteries, a control system and a control method, solves the problem that safety risks exist when a container transports the batteries in the prior art, and has the beneficial effect that the safety of the battery transportation process is improved. A plurality of rows of supporting frames are arranged in the box body, every two adjacent rows of supporting frames are arranged at intervals, each row of supporting frames is provided with a plurality of layers, each layer of the supporting frames is provided with a plurality of columns of supporting grids, batteries are placed at the supporting grids, and temperature sensors are arranged on the tops and the peripheral sides of part or all of the supporting grids. The temperature sensors on the side portions of the supporting grids are fixed to the connecting rods, the connecting rods are installed on the supporting frame in a swinging mode so that the batteries can be conveniently placed in the supporting grids or taken out of the supporting grids, and the side portions of the supporting grids are provided with pressure sensors so that contact pressure values can be obtained when every two adjacent batteries on each layer make contact. And gas detectors are arranged at the top of the box body and above the top-layer supporting grids.

Description

Technical Field

[0001] The present invention relates to the field of lithium battery transportation, and in particular to a container, a control system and a method for transporting batteries. Background Art

[0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] Batteries, especially lithium batteries, as key components of new energy storage technologies, play an important role in modern transportation, communications, electricity and other fields, and their transportation and export volumes are increasing. At present, research on lithium batteries in the field of transportation safety mainly focuses on the temperature field distribution of transportation equipment, packaging protection performance and energy storage containers. In terms of packaging performance, safety requirements for lithium battery transportation packaging design are proposed through analysis of existing technical regulations or accident consequences. However, the above research only focuses on the influence of a single factor or the safety status of lithium batteries in energy storage containers, and does not fully consider the various extreme conditions that lithium batteries may encounter in ordinary containers during transportation, such as temperature changes, impact, etc., which may cause battery performance to degrade or even cause safety accidents;

[0004] In addition, during transportation, existing lithium batteries are simply stacked, and the stacking height is limited and cannot be too high. If it is too high, the batteries are prone to collapse during transportation and the batteries are prone to collision, which not only affects the subsequent performance of the batteries, but also easily causes battery leakage and fire. Summary of the invention

[0005] In view of the deficiencies in the prior art, an object of the present invention is to provide a container for transporting batteries, which is conducive to the safe transportation of batteries.

[0006] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0007] A container for transporting batteries comprises a box body, wherein a plurality of rows of support frames are arranged in the box body, and a distance is set between two adjacent rows of support frames, and each row of support frames is provided with multiple layers, and each layer of the support frames is provided with multiple columns of support grids, and batteries are placed on the support grids, and temperature sensors are arranged on the tops and surrounding sides of some or all of the support grids, and the temperature sensors on the sides of the support grids are fixed to connecting rods, and the connecting rods can be swingably installed on the support frames to facilitate the placement of batteries in the support grids or removal from the support grids, and pressure sensors are arranged on the sides of the support grids to obtain contact pressure values ​​when two adjacent batteries in each layer are in contact, and gas detectors are arranged on the top of the box body above the top support grids, and the gas detectors correspond to the positions of the top support grids one by one, and the temperature sensors, pressure sensors and gas detectors are separately connected to a control unit, and an exhaust port is arranged on the side wall of the box body.

[0008] In the container for transporting batteries as described above, the gas detectors are methane detectors, carbon monoxide detectors and hydrogen detectors, which are integrated on a mounting frame, and the mounting frame is fixed on the top of the box.

[0009] In a container for transporting batteries as described above, the mounting frame is a T-shaped mounting frame, the top of the mounting frame is fixed to the top of the box body, a recess is set on the side of the mounting frame, and the methane detector, carbon monoxide detector and hydrogen detector are respectively inserted into the corresponding recesses.

[0010] In the container for transporting batteries as described above, the top, bottom and sides of the support grid are all hollowed out, the support grid is frame-shaped, each side of the support grid is L-shaped, and the bottom of the support grid supports the batteries.

[0011] In the container for transporting batteries as described above, a switch door is provided at the discharge port, and a power source for opening and closing the door is connected to the control unit.

[0012] A container for transporting batteries as described above also includes a spraying unit, which includes a plurality of nozzles installed on the vertical section of the support frame, the nozzles corresponding to the support grids one by one along the height direction of the support frame, and the spraying direction of the nozzles is set toward the middle of the support grid. The spraying unit is connected to the control unit.

[0013] In a second aspect, the present invention further discloses a container control system for transporting batteries, using the container for transporting batteries;

[0014] The control unit is constructed with a container temperature distribution model and a combustion heat estimation model. The control unit calculates the heat generated at the support grid according to the container temperature distribution model and the combustion heat estimation model. The control unit obtains the temperature values ​​of the external environment acting on the top and side sensors of the support grid according to the container temperature distribution model. The control unit inputs the temperature values ​​obtained by the top and side temperature sensors of the support grid and the temperature values ​​of the external environment acting on the top and side sensors of the support grid into the combustion heat estimation model to obtain the heat generated by battery combustion. The control unit is connected to the remote terminal, and the control unit is connected to the alarm unit.

[0015] In the container control system for transporting batteries as described above, the control unit constructs the container temperature distribution model according to the heat conduction between the container and the external environment, the heat convection between the container and the external environment, and the heat radiated by the sun to the container.

[0016] A container control system for transporting batteries as described above, wherein the heat conduction amount between the container and the external environment is obtained based on parameters related to the heat-conducting material, the temperature difference between the container and the outside world, and the distance of heat transfer;

[0017] The heat convection amount between the container and the external environment is obtained based on the heat transfer coefficient of the convection heat exchange surface and the temperature difference between the container and the outside world;

[0018] The heat radiated by the sun to the container is obtained according to the sunlight radiation intensity outside the atmosphere perpendicular to the direction of the sun-earth line, the direct and scattered solar radiation transmittance ratio under sunny conditions, and the solar azimuth.

[0019] In a third aspect, the present invention further provides a working method of a container control system for transporting batteries, characterized in that it includes the following contents:

[0020] Multiple rows of support frames are arranged in the container body, each row of support frames is arranged with multiple layers, and each layer of the support frames is arranged with multiple columns of support grids;

[0021] Swing the connecting rod relative to the support frame to place the battery into the support grid;

[0022] The temperature sensors located at the support grids obtain the temperature of the top and sides of each battery and send them to the control unit. The control unit inputs the data collected by each temperature sensor into the combustion heat estimation model. The control unit obtains the temperature values ​​of the top and side sensors of the support grids acted by the external environment according to the container temperature distribution model. The control unit inputs the temperature values ​​obtained by the top and side temperature sensors of the support grids and the temperature values ​​of the top and side sensors of the support grids acted by the external environment into the combustion heat estimation model to obtain the heat generated by battery combustion. If the heat generated by battery combustion calculated by the control unit exceeds the heat setting value, the nozzle at the corresponding support grid is controlled to open;

[0023] The pressure sensor obtains the contact pressure value between two adjacent batteries in each layer and sends it to the control unit. When the control unit determines that the pressure data detected by the pressure sensor is greater than the set value, it controls the alarm unit to alarm;

[0024] The gas detector obtains the gas data in the box and sends it to the control unit. When the control unit detects that the gas detected by the gas detector exceeds the set value, it controls the alarm unit to alarm.

[0025] The beneficial effects of the present invention are as follows:

[0026] 1) The present invention arranges a support frame in the box body of the container. The support frame is provided with multiple rows, each row is provided with multiple layers, and each layer is provided with multiple columns. In this way, each battery can be placed in a separate position during transportation, which not only ensures the transportation quantity of the batteries, but also prevents direct contact between adjacent batteries, thereby avoiding bumps and other problems during transportation as much as possible; temperature sensors are arranged on the top and sides of the support grid to realize all-round monitoring of the temperature of the top and surrounding sides of the battery. A gas detector is also arranged in the box body. The gas detector is used to detect information about the gas in the box body and send it to the control unit so as to timely control the opening or closing of the exhaust port. The pressure sensor is used to obtain the contact pressure value between adjacent batteries. Under normal circumstances, there is no contact between the adjacent batteries, and the data transmitted by the pressure sensor is zero. When the value of the pressure sensor changes significantly, it indicates that contact occurs between the adjacent batteries, which is convenient for timely discovery of problems.

[0027] 2) The gas detectors in the present invention are methane detectors, carbon monoxide detectors and hydrogen detectors. The three sensors are integrated and installed on a mounting frame. The mounting frame has a reasonable structure, which can realize the integration of the three gas detectors and is also convenient for installation.

[0028] 3) The present invention is provided with a spraying unit. When the control component learns that the temperature at a certain support grid is greater than the temperature setting value, the control unit controls the corresponding nozzle to open, realizes targeted spraying, and realizes cooling of the corresponding battery. Because the battery has an outer packaging, even if the fire extinguishing gas such as perfluorohexanone gas is sprayed, it will not affect the performance of the battery. If the battery ignites at too high a temperature, the nozzle spraying the fire extinguishing gas will help extinguish the fire.

[0029] 4) The present invention proposes a container control system, and a container temperature distribution model is constructed in the control unit. The temperature difference between the top and the side of the support grid is conducive to the construction of the container temperature distribution model, and then the heat conditions inside the container are obtained. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0031] Figure 1 is a schematic diagram of a container for transporting batteries according to one or more embodiments of the present invention.

[0032] Figure 2 It is a schematic diagram of the connection between a connecting rod and a supporting rod in a container for transporting batteries according to one or more embodiments of the present invention.

[0033] Figure 3FIG. 1 is a top view of the bottom of a support grid in a container for transporting batteries according to one or more embodiments of the present invention.

[0034] Figure 4 is a schematic diagram of a mounting rack in a container for transporting batteries according to one or more embodiments of the present invention.

[0035] In the figure: the distances or sizes between parts are exaggerated to show the positions of various parts, and the schematic diagram is for reference only.

[0036] Wherein: 1. box body, 2. support frame, 3. battery, 4. support rod, 5. pin shaft, 6. connecting rod, 7. temperature sensor, 8. support grid, 9. mounting frame, 10. recess. DETAILED DESCRIPTION

[0037] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0038] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless otherwise explicitly stated in the present invention, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "include" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof;

[0039] As introduced in the background technology, there is a safety risk problem in the prior art of transporting batteries by container. In order to solve the above technical problem, the present invention proposes a container for transporting batteries.

[0040] Embodiment 1

[0041] In a typical embodiment of the present invention, reference is made to Figure 1As shown, a container for transporting batteries comprises a box body 1, wherein multiple rows of support frames 2 are arranged in the box body 2, wherein the bottom of the support frames is specifically fixed to the bottom plate of the box body, and adjacent rows of support frames 2 are arranged at a distance, and each row of support frames 2 is arranged with multiple layers, and each layer of the support frames 2 is arranged with multiple columns of support grids 8, and batteries 3 are placed at the support grids, and temperature sensors are arranged on the top and surrounding sides of some or all of the support grids, and the temperature sensors on the sides of the support grids 8 are fixed to the connecting rods 6, and the connecting rods 6 can be swingably installed on the support frames to facilitate the placement of the batteries in the support grids or removal from the support grids, and pressure sensors are arranged on the sides of the support grids to obtain the contact pressure value when two adjacent batteries in each layer are in contact, and gas detectors are arranged on the top of the box body 1 above the top support grids, and the gas detectors correspond to the positions of the top support grids one by one, and the temperature sensors, pressure sensors and gas detectors are separately connected to the control unit, and exhaust ports are arranged on the side walls of the box body.

[0042] refer to Figure 2 As shown, the support rod 4 on the upper side of the support grid is connected to one end of the connecting rod 6 through a pin 5, so that the connecting rod 6 can swing relative to the support rod 4. The length of the connecting rod 6 is less than the height of the support grid, and a temperature sensor 7 is fixed to the free end of the connecting rod 6.

[0043] In this embodiment, the top, bottom and sides of the support grid are hollowed out to facilitate the insertion or removal of the battery. The support grid 8 is frame-shaped. Figure 3 As shown, the bottom of the support grid 8 is hollowed out, and each side of the support grid is L-shaped, so that a recess is formed on the bottom side of the support grid to support the battery. The bottom of the support grid supports the battery, and the size of the hollow part of the bottom side of the support grid is smaller than the size of the battery, so that the bottom of the support grid effectively supports the bottom of the battery.

[0044] It is easy to understand that a switch door is provided at the discharge port, the power source of the switch door is connected to the control unit, the box body may be provided with multiple discharge ports, the shape of the switch door is adapted to the shape of the discharge port, the switch door is connected to the power source, the power source may be a linear drive mechanism, the linear drive mechanism is connected to the control unit, and the switch door is controlled to move linearly through the linear drive mechanism to achieve ventilation or closing of the discharge port.

[0045] In this embodiment, the gas detectors are existing methane detectors, carbon monoxide detectors and hydrogen detectors. The methane detectors, carbon monoxide detectors and hydrogen detectors are integrated and installed on a mounting frame, and the mounting frame is fixed to the top of the box.

[0046] refer to Figure 4As shown, the mounting frame 9 is a T-shaped mounting frame, the top of the mounting frame 9 can be welded and fixed to the top of the box, three recesses 10 are set on the side of the vertical section of the mounting frame 9, and each recess 10 is respectively set on three side surfaces of the vertical section of the mounting frame, and the methane detector, carbon monoxide detector and hydrogen detector are respectively inserted into the corresponding recesses.

[0047] In addition, the container also includes a spraying unit, which includes a plurality of nozzles installed on the vertical section of the support frame 2. The nozzles correspond to the support grids one by one along the height direction of the support frame 2. The spraying direction of the nozzles is set toward the middle of the support grid, that is, toward the center position of the battery. The spraying unit is connected to the control unit. A pipeline is integrated with a plurality of nozzles. The nozzles are connected to the perfluorohexanone fire extinguishing agent storage bottle through a branch pipe. The branch pipe is provided with a switch, and the switch is connected to the control unit. The position of the nozzle corresponds to the support grid 8 one by one, so that the control unit can control the opening of the corresponding nozzle according to the temperature of the support grid.

[0048] The control unit is specifically an existing computing terminal, which is connected to the controller of the container transport vehicle. The computing terminal is connected to the driver's (or manufacturer, transportation company) mobile phone terminal through a wireless communication network, so that the driver can obtain the temperature information of each support grid in the box, the information of various gases on the top of the box, and the pressure value data between two adjacent batteries on each layer through the mobile phone terminal; the temperature setting value of the temperature sensor is set in the control unit, and the control unit has a display screen, through which relevant data can be displayed in the cab.

[0049] In the container provided in the present embodiment, temperature sensors 7 are arranged on the top and sides of the support grid 8 to realize all-round monitoring of the temperature of the top and surrounding sides of the battery 3. A gas detector is also arranged in the box body, and the gas detector is used to detect the information of the gas in the box body and send it to the control unit so as to timely control the opening or closing of the exhaust port. The pressure sensor is used to obtain the contact pressure value between two adjacent batteries. Under normal circumstances, there is no contact between the two adjacent batteries, and the data transmitted by the pressure sensor is zero. When the value of the pressure sensor changes significantly, it indicates that there is contact between the two adjacent batteries, which is convenient for timely discovery of the problem.

[0050] Embodiment 2

[0051] This embodiment provides a container control system for transporting batteries, using a container for transporting batteries described in Embodiment 1;

[0052] A container temperature distribution model and a combustion heat estimation model are constructed in the control unit. The control unit calculates the heat generated at the support grid according to the container temperature distribution model and the combustion heat estimation model. The control unit obtains the temperature values ​​of the external environment acting on the top and side sensors of the support grid according to the container temperature distribution model. The control unit inputs the temperature values ​​obtained by the top and side temperature sensors of the support grid and the temperature values ​​of the external environment acting on the top and side sensors of the support grid into the combustion heat estimation model to obtain the heat generated by battery combustion. The control unit is connected to a remote terminal (mobile phone). The control unit is connected to an alarm unit. The alarm unit is specifically a buzzer, which can be installed in the cab.

[0053] The control unit constructs a container temperature distribution model based on the heat conduction between the container and the external environment, the heat convection between the container and the external environment, and the heat radiated by the sun to the container:

[0054] The heat conduction between the container and the external environment is obtained according to the following formula:

[0055]

[0056] The heat convection between the container and the external environment is obtained according to the following formula:

[0057]

[0058] Among them, λ is a parameter related to thermal conductivity, also known as thermal conductivity, which is 11.6W / (m 2 ·℃); Δx is the distance of heat transfer, in meters; is the average temperature of the container, in °C; t f The outside air temperature is in °C; h is the heat transfer coefficient of the convection heat transfer surface, which is 19.13 W / (m 2 ·℃); ΔT is the temperature difference between the container and the outside, in ℃;

[0059] Heat radiated by the sun to the container:

[0060] One of the main sources of energy for the temperature rise of containers and goods inside is solar radiation. In transient thermal analysis, solar radiation heating of containers is a dynamic process. The intensity of solar radiation is affected by many factors. Time, season and atmospheric conditions can cause significant changes in radiation intensity. Most sunny day solar radiation models are based on semi-theoretical and semi-empirical formulas to calculate the solar radiation intensity received by the surface of an object. Specifically, the following formula is used to calculate the solar radiation intensity received by the container at different times:

[0061] q3=G on (τ1+τ2)cosα

[0062] G on =G Sc [1+0.033cos(360°n / 365)]

[0063]

[0064]

[0065] τ2=0.2710-0.293τ1

[0066] Among them, G on is the solar radiation intensity outside the atmosphere perpendicular to the direction of the sun-earth line; cosα is the solar azimuth; τ1 and τ2 are the direct and scattered solar radiation transmittance ratios under clear weather conditions; G SC is the solar constant, the radiation intensity of the sun at the average distance between the sun and the earth, G sc =1353W / m 2 ; n is the number of days in a year; δ is the solar declination angle; ω is the solar hour angle; L loα is the latitude of the calculation location; a0, a1, a2 are the physical constants of the standard clear sky atmosphere;

[0067] The temperature distribution inside the container is closely related to factors such as the temperature of the surrounding environment, air convection, and solar radiation. In summary, the thermal balance equation of the container can be expressed as:

[0068]

[0069] Among them, q1 is the heat conduction between the container and the external environment; q2 is the heat convection between the container and the external environment; q3 is the heat radiated by the sun to the container; ρ is the average density; is the average specific heat capacity; T a is the temperature value of the sensor on the top, left or right side of the support grid acted by the external environment; t is the time, is the differential of temperature with respect to time.

[0070] It should be explained that the purpose of establishing the container temperature distribution model is to eliminate the influence of the environment, so that we only focus on the temperature changes caused by the battery to the sensor after combustion. By applying thermal boundary conditions q1, q2, and q3 to the outer surface of the container, the internal temperature distribution of the container under the influence of external conditions can be obtained.

[0071] Combustion heat estimation model;

[0072]

[0073] Among them, Q x，y，z The heat generated by the combustion of the battery pack in a support grid somewhere in the container; T u，x，y，z、T l，x，y，z and T r，x，y，z are the temperature values ​​measured by the sensors on the top, left and right of the support grid; T au，x，y，z 、T al，x，y，z and T ar，x，y，z is the temperature value of the external environment acting on the top, left and right sensors of the support grid, which can be obtained from the thermal balance relationship of the above container; R l and R r is the thermal resistance between the top sensor and the sensors on both sides, which is 0.5K·W -1 ; Set Q x，y，z The threshold is 50J; t is time; the x-axis is the horizontal direction of different support grids of the same support frame; the y-axis is the direction of different support frames; and the z-axis is the vertical direction;

[0074] The control unit uses the combustion heat estimation model described above to calculate the value T measured by each sensor at the same support grid. u，x，y，z 、T l，x，y，z and T r，x，y , z, minus the temperature values ​​T of the sensors on the top and sides of the support grid obtained from the heat balance relationship of the container temperature distribution au，x，y，z 、T al，x，y，z and T au，x，y，z , only considering the heat generated by battery combustion, controls the opening or closing of the corresponding nozzle.

[0075] Embodiment 3

[0076] This embodiment provides a working method of a container control system for transporting batteries, including the following contents:

[0077] Multiple rows of support frames are arranged in the container body, each row of support frames is arranged with multiple layers, and each layer of the support frames is arranged with multiple columns of support grids;

[0078] Swing the connecting rod relative to the support frame to place the battery into the support grid;

[0079] The temperature sensors located at the support grids obtain the temperature of the top and sides of each battery and send them to the control unit. The control unit inputs the data collected by each temperature sensor into the combustion heat estimation model. The control unit obtains the temperature values ​​of the top and side sensors of the support grids acted by the external environment according to the container temperature distribution model. The control unit inputs the temperature values ​​obtained by the top and side temperature sensors of the support grids and the temperature values ​​of the top and side sensors of the support grids acted by the external environment into the combustion heat estimation model to obtain the heat generated by battery combustion. If the heat generated by battery combustion calculated by the control unit exceeds the heat setting value, such as 50J, the nozzle at the corresponding support grid is controlled to open;

[0080] The pressure sensor obtains the contact pressure value between two adjacent batteries in each layer and sends it to the control unit. When the control unit determines that the pressure data detected by the pressure sensor is greater than the set value, it controls the alarm unit to alarm;

[0081] The gas detector obtains the gas concentration data in the box and sends it to the control unit. When the control unit detects that the gas concentration detected by the gas detector exceeds the set value, it controls the alarm unit to alarm. Among them, the set values ​​of the methane detector, carbon monoxide detector and hydrogen detector are: 2×10 -4 , 1.9×10 -4 and 1.5×10 -4 , are volume fractions.

[0082] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A container for transporting batteries, characterized in that: The invention comprises a box body, wherein a plurality of rows of support frames are arranged in the box body, and a distance is set between two adjacent rows of support frames, and each row of support frames is provided with multiple layers, and each layer of the support frames is provided with multiple columns of support grids, and batteries are placed on the support grids, and temperature sensors are arranged on the top and surrounding sides of some or all of the support grids, and the temperature sensors on the sides of the support grids are fixed to connecting rods, and the connecting rods can be swingably installed on the support frames to facilitate the placement of batteries in the support grids or removal from the support grids, and pressure sensors are arranged on the sides of the support grids to obtain contact pressure values ​​when two adjacent batteries in each layer are in contact, and gas detectors are arranged on the top of the box body above the top support grids, and the gas detectors correspond to the positions of the top support grids one by one, and the temperature sensors, pressure sensors and gas detectors are respectively connected to the control unit separately, and an exhaust port is arranged on the side wall of the box body.

2. A container for transporting batteries according to claim 1, characterized in that: The gas detectors are methane detectors, carbon monoxide detectors and hydrogen detectors. The methane detectors, carbon monoxide detectors and hydrogen detectors are integrated and installed on a mounting frame, and the mounting frame is fixed to the top of the box body.

3. A container for transporting batteries according to claim 2, characterized in that: The mounting frame is a T-shaped mounting frame, the top of the mounting frame is fixed to the top of the box body, and a recess is arranged on the side of the mounting frame. The methane detector, the carbon monoxide detector and the hydrogen detector are respectively inserted into the corresponding recesses.

4. A container for transporting batteries according to claim 1, characterized in that: The top, bottom and sides of the support grid are all hollowed out, the support grid is frame-shaped, each side of the support grid is L-shaped, and the bottom of the support grid supports the battery.

5. A container for transporting batteries according to claim 1, characterized in that: A switch door is arranged at the discharge port, and a power source of the switch door is connected to the control unit.

6. A container for transporting batteries according to claim 1, characterized in that: It also includes a spraying unit, which includes a plurality of nozzles installed on the vertical section of the support frame. The nozzles correspond to the support grids one by one along the height direction of the support frame. The spraying direction of the nozzles is set toward the middle of the support grid. The spraying unit is connected to the control unit.

7. A container control system for transporting batteries, characterized in that: A container for transporting batteries as described in claim 6; The control unit is constructed with a container temperature distribution model and a combustion heat estimation model. The control unit calculates the heat generated at the support grid according to the container temperature distribution model and the combustion heat estimation model. The control unit obtains the temperature values ​​of the external environment acting on the top and side sensors of the support grid according to the container temperature distribution model. The control unit inputs the temperature values ​​obtained by the top and side temperature sensors of the support grid and the temperature values ​​of the external environment acting on the top and side sensors of the support grid into the combustion heat estimation model to obtain the heat generated by battery combustion. The control unit is connected to the remote terminal, and the control unit is connected to the alarm unit.

8. A container control system for transporting batteries according to claim 7, characterized in that: The control unit constructs the container temperature distribution model according to the heat conduction between the container and the external environment, the heat convection between the container and the external environment, and the heat radiated by the sun to the container.

9. A container control system for transporting batteries according to claim 8, characterized in that: The heat conduction amount between the container and the external environment is obtained based on parameters related to the heat-conducting material, the temperature difference between the container and the outside world, and the distance of heat transfer; The heat convection amount between the container and the external environment is obtained based on the heat transfer coefficient of the convection heat exchange surface and the temperature difference between the container and the outside world; The heat radiated by the sun to the container is obtained according to the sunlight radiation intensity outside the atmosphere perpendicular to the direction of the sun-earth line, the direct and scattered solar radiation transmittance ratio under sunny conditions, and the solar azimuth.

10. A working method of a container control system for transporting batteries according to any one of claims 7 to 9, characterized in that: It includes the following: Multiple rows of support frames are arranged in the container body, each row of support frames is arranged with multiple layers, and each layer of the support frames is arranged with multiple columns of support grids; Swing the connecting rod relative to the support frame to place the battery into the support grid; The temperature sensors located at the support grids obtain the temperature of the top and sides of each battery and send them to the control unit. The control unit inputs the data collected by each temperature sensor into the combustion heat estimation model. The control unit obtains the temperature values ​​of the top and side sensors of the support grids acted by the external environment according to the container temperature distribution model. The control unit inputs the temperature values ​​obtained by the top and side temperature sensors of the support grids and the temperature values ​​of the top and side sensors of the support grids acted by the external environment into the combustion heat estimation model to obtain the heat generated by battery combustion. If the heat generated by battery combustion calculated by the control unit exceeds the heat setting value, the nozzle at the corresponding support grid is controlled to open; The pressure sensor obtains the contact pressure value between two adjacent batteries in each layer and sends it to the control unit. When the control unit determines that the pressure data detected by the pressure sensor is greater than the set value, it controls the alarm unit to alarm; The gas detector obtains the gas data in the box and sends it to the control unit. When the control unit detects that the gas detected by the gas detector exceeds the set value, it controls the alarm unit to alarm.

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