A control method for a container used for transporting lithium batteries

Abstract

The present invention relates to a control method for a container for transporting lithium batteries, comprising a container, a pressure relief exhaust device, a flame retardant and heat insulating component, a protective device and a monitoring device, wherein the container has an outer layer, an inner layer and an intermediate layer, the flame retardant and heat insulating component is arranged on the intermediate layer, the protective device is arranged outside the outer layer, the pressure relief exhaust device is arranged at the front end of the container, and the monitoring device is arranged on the container. Through this mechanism, the problem of safety monitoring of the internal environment of the existing lithium battery cargo transport container is solved.

Description

Technical Field

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

[0002] In recent years, new energy vehicles, lithium batteries and photovoltaic products have been hailed as the "new three" of China's foreign trade, becoming a new business card that shows that China's manufacturing is moving towards high-end, intelligent and green. With the new energy vehicle industry becoming a strategic emerging industry that the country focuses on supporting, my country has become the world's largest producer of power lithium batteries for electric vehicles. Existing transportation methods are difficult to meet the rapidly growing demand for power lithium battery transportation. Railway transportation has huge advantages in transportation scale, stability, transportation safety and carbon emissions, especially in the realization of medium and long-distance large-scale transportation by lithium battery manufacturers. The main products exported by leading lithium battery manufacturers have a more urgent demand for railway transportation. At present, my country's power lithium battery product standard system has issued the "Safety Requirements for Power Batteries for Electric Vehicles" (GB 38031). Domestic power lithium-ion batteries for electric vehicles need to pass the GB 38031 test in accordance with national standards, and product quality and product safety are guaranteed to a certain extent.

[0003] Lithium-ion batteries for electric vehicles, with the Iron Hazard Number 91045 and the UN Number 3480, belong to Class 9: Miscellaneous Dangerous Substances and Articles, including substances that are harmful to the environment. Thermal runaway of lithium-ion batteries for electric vehicles will produce a large amount of gas, with a fast ignition speed, long duration, high combustion temperature, and difficulty in extinguishing. Long-term burning poses the risk of explosion. General-purpose containers can be used for both road and sea transportation. The materials of the main components such as the side walls, end walls, and top of general-purpose containers are ordinary steel, with a thickness of about 2mm, and do not have flame retardant and heat insulation functions. In addition, when lithium batteries are shipped in general-purpose containers, if the pressure inside the box is too high due to thermal runaway of the lithium battery, the general-purpose container is prone to risks such as box deformation and bursting. The high temperature environment of general-purpose containers is not conducive to the safe transportation of lithium batteries. At present, some sea transportation uses refrigerated boxes or insulated boxes to transport lithium batteries. Refrigerated boxes or insulated boxes have better sealing properties. Although the temperature inside the box can be controlled, if a large amount of gas is generated due to thermal runaway of the lithium battery, the gas cannot be discharged in time, which makes it more likely to cause risks such as box deformation and bursting.

[0004] At present, there is a lack of monitoring technology for the environment inside containers when transporting lithium battery cargo. The transportation of lithium battery cargo is affected by various factors. Under certain circumstances, thermal runaway may occur, causing battery overheating, fire, or even explosion. During this process, smoke, temperature rise, and increased air pressure will appear. After thermal runaway occurs, it is difficult to control the scope, duration, and consequences of the accident, which also has a significant impact on the rescue time and rescue effect. Summary of the invention

[0005] The invention provides a control method for a container used for transporting lithium batteries, which solves the problem of safety monitoring of the internal environment of an existing lithium battery cargo transport container.

[0006] The technical solution of the present invention to solve the above technical problems is as follows:

[0007] The box body has an outer layer, an inner layer and a middle layer, the flame retardant heat insulating component is arranged in the middle layer, the protective device is arranged outside the outer layer, the pressure relief exhaust device is arranged at the front end of the box body, and the monitoring device is arranged on the box body.

[0008] The beneficial effect of the present invention is that the box is arranged into three layers, and the flame retardant heat insulation component is arranged in the middle layer to form a flame retardant heat insulation interlayer. The flame retardant heat insulation component prevents the high temperature caused by the thermal runaway of the lithium battery in the box from overflowing outside the box. At the same time, a pressure relief exhaust device is arranged at the front end of the box. When the pressure in the box rises to the pressure set by the product, the pressure relief exhaust device will open at the specified pressure value and release the internal pressure from the pressure relief exhaust device to the outside of the box. By monitoring the inside of the box by the monitoring device, the temperature, smoke concentration, opening and closing of the pressure relief exhaust device and the position of the inside of the box can be monitored in advance. Early signs of abnormal state of lithium battery cargo can be monitored in advance, and an alarm can be sounded in advance to buy time for emergency rescue, prevent larger accidents from occurring, and improve the safety and reliability of lithium battery transportation. The protective device is arranged on the outside of the box to reduce the damage to the box caused by collision during transportation and reduce the damage to the lithium battery in the box.

[0009] On the basis of the above technical solution, the present invention also makes the following improvements.

[0010] Furthermore, the rear end of the box is arranged as a box door, and the box door is arranged to be double-opening. The bottom of the box adopts a steel bottom plate, and a plurality of bottom plate grooves are symmetrically opened on both sides of the length direction of the steel bottom plate in the box body, and a bolting device is arranged in the bottom plate groove. The middle layer is a steel buckle frame. The external length, width and height dimensions of the box are 12192×2438×2896mm, and the internal length, width and height dimensions are 11930×2290×2632mm.

[0011] The beneficial effect of adopting the above further solution is that the external length, width and height dimensions of the box body are 12192×2438×2896 mm, and the external dimensions of the box body are consistent with the external dimensions of a standard container, and are suitable for railway, road and sea transportation.

[0012] The internal length, width and height of the box are designed to be 11930×2290×2632mm. The middle layer of the box adopts a steel gusset frame, which makes the box more solid as a whole. At the same time, the 40mm steel gusset frame is used to reduce the thickness of the box, making the internal dimensions of the box smaller than the internal dimensions of the existing standard container. The internal dimensions of the box are smaller than the internal dimensions of the standard container, so that the space inside the box is expanded, making the interior of the container suitable for shipping more and wider lithium battery cargo. Using a standard lithium battery loading pallet, two pallets can be loaded side by side into the box, which increases the loading capacity of the container and the utilization rate of the space inside the box.

[0013] At the same time, a double-opening door is provided at the rear end of the box body, so as to facilitate pushing the tray containing lithium batteries into the box body. The tray is fixed by bolting devices provided in multiple bottom plate grooves, so that the lithium battery pack in the box body can be fixed on the bottom plate of the box body through the bolting devices.

[0014] Furthermore, the protective device is a corrugated plate, which is divided into a first corrugated plate and a second corrugated plate. The depth of the first corrugated plate is 25 mm and the first corrugated plate is arranged on both sides of the box. The second corrugated plate is of standard thickness and is arranged on the top, front end and rear end of the box.

[0015] The beneficial effect of adopting the above further solution is that the first corrugated plate is arranged on both sides of the box body, so that the side walls on both sides of the box body are thinned, the space on both sides of the box body is expanded, and the inside of the container body is suitable for transporting more and wider lithium battery goods. By using a standard lithium battery loading pallet, two pallets can be loaded side by side into the box, which increases the loading capacity of the container and the utilization rate of the space inside the box.

[0016] Furthermore, the pressure relief and exhaust device includes a pressure relief window frame, a rotating structure and a barrier net. A pressure relief port is opened at the front end of the box body, the pressure relief and exhaust device is arranged at the pressure relief port, the barrier net is arranged on one side of the pressure relief window frame, and the rotating structure is arranged on the other side of the pressure relief window frame. The side of the pressure relief window frame with the barrier net is arranged inside the box body, and the side with the rotating structure is arranged outside the box body.

[0017] The beneficial effect of adopting the above further solution is that a pressure relief exhaust device is arranged at the front end of the box body. When the pressure in the box body rises to the pressure set by the product, the pressure relief exhaust device will open at the specified atmospheric pressure value, and the pressure in the box body pushes the rotating structure to rotate along one side of the pressure relief window frame, so that one side of the pressure relief window frame is opened, so that the internal pressure is released from the pressure relief window frame to the surrounding area. At the same time, a barrier net is arranged on the pressure relief window frame, and the barrier net can block dust in the air outside the container, preventing the dust outside from entering the lithium battery in the box.

[0018] Furthermore, the rotating structure includes a rotating shaft, a pressure relief plate, an adsorption member and an elastic member. There are two elastic members, which are respectively arranged at both ends of the rotating shaft and connected to the pressure relief window frame. One side of the pressure relief plate is rotatably connected to the pressure relief window frame through the rotating shaft. Adsorption members are respectively arranged on the pressure relief plate and the pressure relief window frame, and the pressure relief plate and the pressure relief window frame are attracted to each other through the adsorption members.

[0019] The beneficial effect of adopting the above further scheme is that when the pressure in the box rises to the pressure set by the product, the pressure relief exhaust device will open at the specified atmospheric pressure value, and the pressure in the box pushes the pressure relief plate, so that the pressure relief plate rotates around the rotating shaft, so that the side of the pressure relief plate away from the rotating shaft can be opened away from the pressure relief window frame, so that the pressure in the box is released to the surrounding area through the opened window. When the pressure in the box is lower than the pressure set by the product, the pressure in the box is no longer released outward, and the pressure relief window frame and the pressure relief plate can close automatically through the elastic action of the elastic parts set at both ends of the rotating shaft. The pressure relief plate and the pressure relief window frame are sealed by the adsorption member. Such a setting can prevent the pressure relief exhaust device from opening automatically due to vibration and impact during container transportation.

[0020] Furthermore, the monitoring device includes a monitoring host, a smoke + temperature sensing module, and a pressure relief exhaust device opening and closing counting module. The monitoring host is arranged outside the box, the smoke + temperature sensing module is arranged at the top inside the box, and the pressure relief exhaust device opening and closing counting module is arranged on the pressure relief exhaust device.

[0021] The beneficial effect of adopting the above further scheme is that the smoke + temperature sensing module and the pressure relief exhaust device opening and closing counting module transmit the monitored values ​​to the monitoring host, and the monitoring host determines whether the temperature and smoke concentration values ​​in the box monitored by the smoke + temperature sensing module have reached the set values. When the temperature and smoke concentration in the box reach the set values, the monitoring device will sound an alarm. When the pressure value in the box exceeds the set pressure value, the pressure relief exhaust device opening and closing counting module transmits the value to the monitoring host. At the same time, the pressure in the box pushes the pressure relief plate, opens the pressure relief exhaust device, and releases the pressure in the box to the outside of the box.

[0022] Furthermore, the smoke + temperature sensing module includes a smoke sensor and a temperature sensor, which are integrated in one module. There are multiple smoke + temperature sensing modules, and the multiple smoke + temperature sensing modules are dispersedly installed on the top of the box.

[0023] The beneficial effect of adopting the above further scheme is that the smoke sensor is based on the photoelectric principle. When smoke enters the sensor, the smoke particles will scatter and absorb the light, causing the light intensity to weaken, thereby detecting the presence of smoke. The temperature sensor is based on the thermistor method and can sense temperature changes. The smoke sensor and the temperature sensor are integrated in one module, so that the smoke sensor and the temperature sensor synchronously send data to the monitoring host, and the monitoring host determines the temperature value and smoke concentration value in the box and whether an alarm needs to be issued.

[0024] Furthermore, the monitoring host includes a main control module, a communication module, a positioning module, an explosion-proof battery and a power conversion module. The main control module is electrically connected to the communication module, the positioning module, the explosion-proof battery, the power conversion module, the smoke + temperature sensing module and the pressure relief exhaust device opening and closing counting module through an antenna.

[0025] The beneficial effect of adopting the above further scheme is that the communication module, the positioning module, the explosion-proof battery, the power conversion module, the smoke + temperature sensing module and the pressure relief exhaust device opening and closing counting module are electrically connected through the main control module, and the communication module, the positioning module, the explosion-proof battery, the power conversion module, the smoke + temperature sensing module and the pressure relief exhaust device opening and closing counting module send the monitored data to the main control module, and the main control module determines whether the value of each module reaches the set value, so that the main control module can issue corresponding instructions.

[0026] Furthermore, the opening and closing counting module of the pressure relief and exhaust device is composed of two parts, one of which is fixedly installed on the pressure relief and exhaust device, and the other is installed on the movable pressure relief plate.

[0027] The beneficial effect of adopting the above further scheme is that the pressure relief exhaust device opening and closing counting module is divided into two parts, one part is fixedly installed on the pressure relief exhaust device, and the other part is installed on the movable pressure relief plate, so that the pressure relief exhaust device opening and closing counting module can record data when the pressure relief exhaust device is opened to relieve pressure.

[0028] On the other hand, a control method for a new container for transporting lithium batteries is provided. Based on a new container for transporting lithium batteries, the monitoring and control method is:

[0029] S1: The monitoring host, smoke + temperature sensing module and pressure relief exhaust device opening and closing counting module are in dormant state;

[0030] S2: The monitoring host and the smoke and temperature sensing modules wake up at scheduled times;

[0031] S3: The smoke and temperature sensing modules will detect whether the sampling period meets the time requirements;

[0032] S4: If the time requirement is not met, the smoke and temperature sensors continue to be in dormant state;

[0033] S5: When the time requirement is met, the smoke sensor + temperature sensor module collects the smoke concentration and temperature value of the environment at that time, and compares the collected smoke concentration and temperature value of the environment at that time with the established threshold value;

[0034] S6: If the smoke concentration and temperature values ​​of the environment collected at that time do not exceed the threshold, the system continues to sleep;

[0035] S7: If any of the smoke concentration and temperature values ​​collected at the time exceeds the threshold, the alarm status will be recorded and the time will be accumulated;

[0036] S8: Determine whether the recorded accumulated time exceeds the alarm delay time;

[0037] S9: If the alarm delay time is not exceeded, the alarm will not be recorded and the system will enter sleep mode.

[0038] S10: If the alarm delay time is exceeded, the pressure relief exhaust device enters the bus, and the smoke + temperature sensor module (62) sends alarm data to the monitoring host;

[0039] S11: The monitoring host checks whether there is alarm information generated by the smoke and temperature sensing modules on the bus;

[0040] S12: When real-time abnormal alarm data enters the bus of the monitoring host, the monitoring host issues an alarm and locates the location through the positioning module. After the location is completed, the data is packaged and sent to the remote system platform;

[0041] S13: When no data enters the bus of the monitoring host, the main control module of the monitoring host checks the dynamic and static cycle and determines whether the dynamic and static cycle is satisfied;

[0042] S14: If the dynamic and static cycle is not satisfied, the monitoring host enters a dormant state;

[0043] S15: If the dynamic and static cycles are met, the monitoring host starts to poll the slave node data, collects the current normal data through the smoke and temperature sensing modules, collects the current data through the pressure relief exhaust device opening and closing counting module, and locates the position of the container through the positioning module;

[0044] S16: After the positioning is completed, the data is packaged and sent to the remote system platform;

[0045] S17: When the pressure in the box is greater than the set value, the pressure relief exhaust device is opened to exhaust;

[0046] S18: The Hall sensor of the opening and closing counting module of the pressure relief exhaust device starts recording, the number of opening and closing times is increased by one and the data is saved;

[0047] S19: After the pressure relief exhaust device opening and closing counting module completes recording, it enters sleep mode.

[0048] The beneficial effect of adopting the above further scheme is that the monitored values ​​are transmitted to the monitoring host through the smoke + temperature sensing module and the pressure relief exhaust device opening and closing counting module, and the monitoring host determines whether the temperature and smoke concentration values ​​in the box monitored by the smoke + temperature sensing module have reached the set values. When the temperature and smoke concentration in the box reach the set values, the monitoring device will sound an alarm. When the pressure value in the box exceeds the set pressure value, the pressure relief exhaust device opening and closing counting module transmits the value to the monitoring host. At the same time, the pressure in the box pushes the pressure relief plate, opens the pressure relief exhaust device, and releases the pressure in the box to the outside of the box. When the values ​​monitored by the smoke + temperature sensing module and the pressure relief exhaust device opening and closing counting module do not reach the set values, the monitoring host is in a dormant state. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 This is a schematic structural diagram of a new type of container for transporting lithium batteries according to the present invention;

[0050] Figure 2 This is a schematic structural diagram of another side angle of a new container for transporting lithium batteries according to the present invention;

[0051] Figure 3 This is a top cross-sectional view of a new type of container for transporting lithium batteries according to the present invention;

[0052] Figure 4 This is a schematic structural diagram of a monitoring device for a new container for transporting lithium batteries according to the present invention;

[0053] Figure 5 This is a side sectional view of a new type of container for transporting lithium batteries according to the present invention;

[0054] Figure 6 This is an enlarged schematic diagram of part A of a new type of container for transporting lithium batteries according to the present invention;

[0055] Figure 7 This is a cross-sectional view of the bottom of a new type of container for transporting lithium batteries according to the present invention;

[0056] Figure 8 This is an enlarged schematic diagram of part D of a new container for transporting lithium batteries according to the present invention;

[0057] Fig. 9 This is an enlarged schematic diagram of part C of a new type of container for transporting lithium batteries according to the present invention;

[0058] Fig.10 This is an enlarged schematic diagram of part B of a new type of container for transporting lithium batteries according to the present invention;

[0059] Fig.11 This is a front end cross-sectional view of a new type of container for transporting lithium batteries according to the present invention;

[0060] Fig.12 It is an enlarged structural schematic diagram of a new container pressure relief and exhaust device for lithium battery transportation according to the present invention;

[0061] Fig.13 The present invention is a process flow of a control method for a new container for lithium battery transportation Figure 1 ;

[0062] Fig.14 The present invention is a process flow of a control method for a new container for lithium battery transportation Figure 2 .

[0063] In the attached drawings, the list of components represented by each reference numeral is as follows: 2-box body; 21-outer layer; 22-inner layer; 23-middle layer; 24-box door; 25-bottom plate groove; 251-bolting device; 3-pressure relief exhaust device; 31-pressure relief window frame; 32-rotating structure; 321-rotating shaft; 322-pressure relief plate; 323-adsorption member; 324-elastic member; 33-barrier net; 4-flame retardant and heat insulating member; 5-protective device; 51-first corrugated plate; 52-second corrugated plate; 6-monitoring device; 61-monitoring host; 62-smoke sensor + temperature sensor module; 63-pressure relief exhaust device opening and closing counting module. DETAILED DESCRIPTION

[0064] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0065] Example 1

[0066] like Figure 1-Figure 12 As shown, the box body 2 has an outer layer 21, an inner layer 22 and a middle layer 23, the flame retardant heat insulation component 4 is arranged on the middle layer 23, the protective device 5 is arranged outside the outer layer 21, the pressure relief exhaust device 3 is arranged at the front end of the box body 2, and the monitoring device 6 is arranged on the box body 2.

[0067] Specifically, the flame retardant heat insulation component 4 is filled in the middle layer 23 to form a flame retardant heat insulation interlayer. The protective device 5 is arranged outside the outer layer 21 of the box body 2 to protect the outer layer 21 of the box body 2. The pressure relief exhaust device 3 is arranged at the front end of the box body 2. When the pressure value in the box body 2 is greater than the set value, the pressure relief exhaust device 3 is opened to release the pressure in the box body 2 to the outside of the pressure relief exhaust device 3. The temperature, smoke concentration and pressure value in the box body 2 are monitored by the monitoring device 6. The temperature, smoke concentration, opening and closing of the pressure relief exhaust device 3 and the position inside the box body 2 can be monitored in advance. Early signs of abnormal state of lithium battery cargo can be monitored in advance, and an alarm can be issued in advance to buy time for emergency rescue, prevent greater accidents, and improve the safety and reliability of lithium battery transportation. In this embodiment, the flame retardant heat insulation component 4 is a rock wool board, and the rock wool board has multiple pieces, and the multiple rock wool boards are spliced ​​and built in the middle layer 23. In this embodiment, the density of the rock wool boards on both sides of the box body 2 is 120kg / m 3 The thickness of the rock wool board in other locations is 50mm and the density is 90kg / m 3 Alternatively, the rock wool board may also be replaced by other materials having the same function and effect as the rock wool board.

[0068] like Figure 1-Figure 12 As shown, the rear end of the box body 2 is set as a box door 24, and the box door 24 is set to be double-opening. The bottom of the box body 2 adopts a steel bottom plate, and a plurality of bottom plate grooves 25 are symmetrically opened on both sides of the length direction of the steel bottom plate in the box body 2, and a bolting device 251 is arranged in the bottom plate groove 25. The middle layer 23 is a steel buckle frame. The outer length, width and height dimensions of the box body 2 are 12192×2438×2896mm, and the inner length, width and height dimensions are 11930×2290×2632mm.

[0069] Specifically, the outer dimensions of the box body 2 are 12192×2438×2896 mm in length, width and height. The outer dimensions of the device are consistent with those of a standard container and are suitable for railway, road and sea transportation.

[0070] The internal length, width and height of the box body 2 are designed to be 11930×2290×2632mm. The middle layer 23 of the box body 2 adopts a steel gusset frame, which makes the box body 2 more solid as a whole. In this embodiment, the thickness of the middle layer on both sides of the box body 2 is 40mm, and the thickness of the middle layer on other surfaces is 50mm. The thickness of the middle layer on both sides is 40mm, which reduces the thickness of the box body 2 on both sides, making the internal dimensions of the box body 2 larger than the internal dimensions of the existing standard container. The internal dimensions of the box body 2 are larger than the internal dimensions of the standard container, so that the space inside the box body 2 is expanded, making the inside of the box body 2 of the container suitable for shipping more and wider lithium battery cargo. Using a standard lithium battery loading pallet, two pallets can be loaded side by side into the box, which increases the loading capacity of the container and the utilization rate of the space inside the box. In this embodiment, the steel plate of the steel gusset frame needs to meet the 0.6P side wall strength test requirements and the 0.4P end wall strength test requirements.

[0071] At the same time, a double-opening door 24 is provided at the rear end of the box body 2 to facilitate pushing the tray containing lithium batteries into the box body 2. The tray is fixed by means of a plurality of bolting devices 251 provided in the bottom plate grooves 25, so that the lithium battery pack in the box body 2 can be fixed on the bottom plate in the box body 2 by the bolting devices 251. In the present embodiment, the bolting device 251 is a bottom plate hook, and alternatively, the bolting device 251 can also be replaced by other components with bolting function. In the present embodiment, the steel bottom plate used at the bottom of the box body 2 needs to meet the bottom plate strength test requirements of a single-axis load of 7260kg. The bolting device 251 provided on the steel bottom plate should not be higher than the floor surface when not in use.

[0072] like Figure 1-Figure 12 As shown, the protective device 5 is a corrugated plate, which is divided into a first corrugated plate 51 and a second corrugated plate 52. The depth of the first corrugated plate 51 is 25 mm. The first corrugated plate 51 is arranged on both sides of the box body 2. The second corrugated plate 52 is of standard thickness and is arranged on the top, front end and rear end of the box body 2.

[0073] Specifically, the first corrugated plate 51 is arranged on both sides of the box body 2, and the depth of the first corrugated plate 51 is less than the depth of the corrugated plate on the standard container, thereby expanding the internal space of the box body 2. The second corrugated plate 52 is arranged on the top, front end and rear end of the box body 2, so that the top, front end and rear end of the box body 2 are consistent with the top, front end and rear end of the standard container. In this embodiment, the depth of the first corrugated plate 51 is 25 mm. Alternatively, under the condition of ensuring the side strength of the box body 2, the depth of the first corrugated plate 51 can also be less than 25 mm, or the depth of the first corrugated plate 51 can be any value between 25 mm and 36 mm.

[0074] like Figure 1-Figure 12As shown, the pressure relief exhaust device 3 includes a pressure relief window frame 31, a rotating structure 32 and a barrier net 33. A pressure relief port is opened at the front end of the box body 2, and the pressure relief exhaust device 3 is arranged at the pressure relief port. The barrier net 33 is arranged on one side of the pressure relief window frame 31, and the rotating structure 32 is arranged on the other side of the pressure relief window frame 31. The pressure relief window frame 31 has a side with the barrier net 33 arranged inside the box body 2, and a side with the rotating structure 32 arranged outside the box body 2.

[0075] Specifically, a pressure relief exhaust device 3 is provided at the front end of the box body 2. When the pressure in the box body 2 rises to the pressure set by the product, the pressure relief exhaust device 3 will open at the specified atmospheric pressure value. The pressure in the box body 2 pushes the rotating structure 32, so that the rotating structure 32 rotates along one side of the pressure relief window frame 31, so that one side of the pressure relief window frame 31 is opened, so that the internal pressure is released from the pressure relief window frame 31 to the surrounding area. At the same time, a barrier net 33 is provided on the pressure relief window frame 31. The barrier net 33 can block dust in the air outside the container to prevent dust from outside from entering the lithium battery in the box. In this embodiment, the thickness of the barrier net 33 is ≧1mm, and the aperture is ≦3mm. In this embodiment, the specified atmospheric pressure value for opening the pressure relief exhaust device 3 is 1100±50Pa. When the pressure value in the box body 2 exceeds 1100±50Pa, the pressure relief exhaust device 3 is opened.

[0076] like Figure 1-Figure 12 As shown, the rotating structure 32 includes a rotating shaft 321, a pressure relief plate 322, an adsorption member 323 and an elastic member 324. There are two elastic members 324, which are respectively arranged at both ends of the rotating shaft 321 and connected to the pressure relief window frame 31. One side of the pressure relief plate 322 is rotatably connected to the pressure relief window frame 31 through the rotating shaft 321. Adsorption members 323 are respectively arranged on the pressure relief plate 322 and the pressure relief window frame 31, and the pressure relief plate 322 and the pressure relief window frame 31 are attracted to each other through the adsorption member 323.

[0077] Specifically, when the pressure in the box 2 rises to the pressure set by the product, the pressure relief exhaust device 3 will open at the specified atmospheric pressure value, and the pressure in the box 2 pushes the pressure relief plate 322, so that the pressure relief plate 322 rotates around the rotating shaft 321, so that the side of the pressure relief plate 322 away from the rotating shaft 321 can be opened away from the pressure relief window frame 31, so that the pressure in the box 2 is released to the surrounding area through the opened window. When the pressure in the box 2 is less than the pressure set by the product, the pressure in the box 2 is no longer released outward, and the pressure relief window frame 31 and the pressure relief plate 322 can close themselves through the elastic action of the elastic member 324 set at both ends of the rotating shaft 321. The pressure relief plate 322 and the pressure relief window frame 31 are sealed by the adsorption member 323. Such a setting can prevent the pressure relief exhaust device 3 from opening automatically due to vibration and impact during container transportation. In this embodiment, the elastic member 324 is a spring. Alternatively, the elastic member 324 may also be configured as other components with a rebound effect. In this embodiment, the adsorption member 323 is a magnet, and alternatively, the adsorption member 323 may also be replaced by other components with an adsorption effect.

[0078] like Figure 1-Figure 12 As shown, the monitoring device 6 includes a monitoring host 61, a smoke + temperature sensing module 62, and a pressure relief exhaust device opening and closing counting module 63. The monitoring host 61 is arranged outside the box 2, the smoke + temperature sensing module 62 is arranged at the top of the box 2, and the pressure relief exhaust device opening and closing counting module 63 is arranged on the pressure relief exhaust device 3.

[0079] Specifically, in this embodiment, the monitoring host 61 is installed on the upper side of the outer side of the box 2, the smoke + temperature sensing module 62 is installed on the top of the box 2, and the pressure relief exhaust device opening and closing counting module 63 is installed on the pressure relief exhaust device 3. The smoke + temperature sensing module 62 and the pressure relief exhaust device opening and closing counting module 63 are electrically connected to the monitoring host 61. The smoke + temperature sensing module 62 and the pressure relief exhaust device opening and closing counting module 63 transmit the monitored values ​​to the monitoring host 61, and the monitoring host 61 determines whether the temperature and smoke concentration values ​​in the box 2 monitored by the smoke + temperature sensing module 62 reach the set values. When the temperature and smoke concentration in the box 2 reach the set values, the monitoring device 6 issues an alarm. When the pressure value in the box 2 exceeds the set pressure value, the pressure relief exhaust device opening and closing counting module 63 transmits the value to the monitoring host 61, and at the same time, the pressure in the box 2 pushes the pressure relief plate 322, opens the pressure relief exhaust device 3, and releases the pressure in the box 2 to the outside of the box 2.

[0080] like Figure 1-Figure 12As shown, the smoke + temperature sensing module 62 includes a smoke sensor and a temperature sensor, which are integrated in one module. There are multiple smoke + temperature sensing modules 62, and the multiple smoke + temperature sensing modules 62 are dispersedly installed on the top of the box 2.

[0081] Specifically, multiple smoke + temperature sensing modules 62 are dispersedly installed on the top of the box 2, so that the multiple smoke + temperature sensing modules 62 can monitor the temperature and smoke concentration in the box 2 in an all-round way. The smoke sensor is based on the photoelectric principle. When smoke enters the sensor, the smoke particles will scatter and absorb the light, causing the light intensity to decrease, thereby detecting the presence of smoke. The temperature sensor is based on the thermistor method and can sense temperature changes. The smoke sensor and the temperature sensor are integrated into one module, so that the smoke sensor and the temperature sensor synchronously send data to the monitoring host 61, and the monitoring host 61 determines the temperature value and smoke concentration value in the box 2 and whether an alarm needs to be issued.

[0082] like Figure 1-Figure 12 As shown, the monitoring host 61 includes a main control module, a communication module, a positioning module, an explosion-proof battery and a power conversion module. The main control module is electrically connected to the communication module, the positioning module, the explosion-proof battery, the power conversion module, the smoke + temperature sensing module 62 and the pressure relief exhaust device opening and closing counting module 63 through an antenna.

[0083] Specifically, the communication module, the positioning module, the explosion-proof battery, the power conversion module, the smoke + temperature sensing module 62 and the pressure relief exhaust device opening and closing counting module 63 are electrically connected through the main control module, and the communication module, the positioning module, the explosion-proof battery, the power conversion module, the smoke + temperature sensing module 62 and the pressure relief exhaust device opening and closing counting module 63 send the monitored data to the main control module, and the main control module determines whether the value of each module reaches the set value, so that the main control module can issue a corresponding instruction.

[0084] like Figure 1-Figure 12 As shown, the pressure relief exhaust device opening and closing counting module 63 is composed of two parts, one part of which is fixedly installed on the pressure relief exhaust device 3, and the other part is installed on the movable pressure relief plate 322.

[0085] Specifically, the pressure relief exhaust device opening and closing counting module 63 is divided into two parts, one part is fixedly installed on the pressure relief exhaust device 3, and the other part is installed on the movable pressure relief plate 322, so that the pressure relief exhaust device opening and closing counting module 63 can record data when the pressure relief exhaust device 3 is opened to relieve pressure.

[0086] The beneficial effects of this embodiment are as follows: the smoke sensor + temperature sensor module 62 and the pressure relief exhaust device opening and closing counting module 63 transmit the monitored values ​​to the monitoring host 61, and the monitoring host 61 determines whether the temperature and smoke concentration values ​​in the box 2 monitored by the smoke sensor + temperature sensor module 62 reach the set values. When the temperature and smoke concentration in the box 2 reach the set values, the monitoring device 6 issues an alarm. When the pressure value in the box 2 exceeds the set pressure value, the pressure relief exhaust device opening and closing counting module 63 transmits the value to the monitoring host 61. At the same time, the pressure in the box 2 pushes the pressure relief plate 322, opens the pressure relief exhaust device 3, and releases the pressure in the box 2 to the outside of the box 2.

[0087] The working process of this embodiment is as follows: push multiple groups of lithium batteries into the box body 2 through the box door 24, and fix the lithium batteries on the bottom plate in the box body 2 through multiple bolting devices 251. The initial values ​​of the smoke sensor + temperature sensor module 62 and the pressure relief exhaust device opening and closing counting module 63 are located through the communication module and the positioning module, and the values ​​are sent to the main control module. The smoke sensor + temperature sensor module 62 and the pressure relief exhaust device opening and closing counting module 63 transmit the monitored values ​​to the monitoring host 61, and the monitoring host 61 determines whether the temperature and smoke concentration values ​​in the box body 2 monitored by the smoke sensor + temperature sensor module 62 reach the set values. When the temperature and smoke concentration in the box body 2 reach the set values, the monitoring device 6 issues an alarm. When the pressure value in the box body 2 exceeds the set pressure value, the pressure relief exhaust device opening and closing counting module 63 transmits the value to the monitoring host 61. At the same time, the pressure in the box body 2 pushes the pressure relief plate 322, opens the pressure relief exhaust device 3, and releases the pressure in the box body 2 to the outside of the box body 2. Then, under the rebound effect of the elastic member 324 , the pressure relief plate 322 and the pressure relief window frame 31 of the pressure relief exhaust device 3 can be closed automatically, and the pressure relief plate 322 and the pressure relief window frame 31 are sealed by the adsorption member 323 .

[0088] Example 2

[0089] like Fig.13 , Fig.14 As shown, based on Example 1, the control method of the container is:

[0090] S1: The monitoring host 61, the smoke and temperature sensing module 62 and the pressure relief exhaust device opening and closing counting module 63 are in a dormant state;

[0091] S2: The monitoring host 61 and the smoke and temperature sensing module 62 wake up at a scheduled time;

[0092] S3: The smoke and temperature sensing module 62 detects whether the sampling period meets the time requirement;

[0093] S4: When the time requirement is not met, the smoke and temperature sensing module 62 continues to be in a dormant state;

[0094] S5: When the time requirement is met, the smoke and temperature sensing module 62 collects the smoke concentration and temperature value of the environment at that time, and compares the collected smoke concentration and temperature value of the environment at that time with the established threshold value;

[0095] S6: If the smoke concentration and temperature values ​​of the environment collected at that time do not exceed the threshold, the system continues to sleep;

[0096] S7: If any of the smoke concentration and temperature values ​​collected at the time exceeds the threshold, the alarm status will be recorded and the time will be accumulated;

[0097] S8: Determine whether the recorded accumulated time exceeds the alarm delay time;

[0098] S9: If the alarm delay time is not exceeded, the alarm will not be recorded and the system will enter sleep mode.

[0099] S10: If the alarm delay time is exceeded, the accumulated alarm record data enters the bus, and the smoke + temperature sensor module 62 sends the alarm data to the monitoring host 61;

[0100] S11: The monitoring host 61 checks whether the bus has alarm information generated by the smoke and temperature sensing modules;

[0101] S12: When real-time abnormal alarm data enters the bus of the monitoring host 61, the monitoring host 61 issues an alarm and locates the location through the positioning module. After the location is completed, the data is packaged and sent to the remote system platform;

[0102] S13: When no data enters the bus of the monitoring host 61, the main control module of the monitoring host 61 checks the dynamic and static cycle and determines whether the dynamic and static cycle is satisfied;

[0103] S14: If the dynamic-static cycle is not satisfied, the monitoring host 61 enters a dormant state;

[0104] S15: If the dynamic and static cycles are met, the monitoring host 61 starts to poll the slave node data, collects the current normal data through the smoke and temperature sensing module 62, collects the current data through the pressure relief exhaust device opening and closing counting module 63, and locates the position of the container through the positioning module;

[0105] S16: After the positioning is completed, the data is packaged and sent to the remote system platform;

[0106] S17: When the pressure in the box is greater than the set value, the pressure relief exhaust device 3 is opened to exhaust;

[0107] S18: The Hall sensor of the pressure relief exhaust device opening and closing counting module 63 starts recording, the number of opening and closing times is increased by one and the data is saved;

[0108] S19: After the pressure relief exhaust device opening and closing counting module 63 completes recording, it enters sleep mode.

[0109] When the conditions inside the container are normal:

[0110] The monitoring host 61, the smoke + temperature sensing module 62 and the pressure relief exhaust device opening and closing counting module 63 are generally in a dormant state, while the monitoring host 61 and the smoke + temperature sensing module 62 will wake up at a fixed time.

[0111] When the smoke + temperature sensing module 62 wakes up at a scheduled time, the smoke + temperature sensing module 62 will detect whether the sampling time of the smoke concentration and temperature meets the time requirements. When the time requirements are not met, the smoke + temperature sensing module 62 continues to be in a dormant state. When the time requirements are met, the smoke + temperature sensing module 62 collects the smoke concentration and temperature values ​​of the environment at that time, and compares the collected smoke concentration and temperature values ​​of the environment at that time with the established thresholds. When the collected smoke concentration and temperature values ​​of the environment at that time do not exceed the threshold, the monitoring host 61 continues to sleep. If any of the collected smoke concentration and temperature values ​​of the environment at that time exceeds the threshold, the alarm status will be recorded and the time will be accumulated, and it will be judged whether the recorded accumulated time exceeds the alarm delay time. If it does not exceed the alarm delay time, the alarm will not be recorded, and the smoke + temperature sensing module 62 will enter sleep.

[0112] When the monitoring host 61 wakes up at the scheduled time, the monitoring host 61 will check whether there is any alarm information generated by the smoke and temperature sensing modules on the bus. If no data enters the bus of the monitoring host 61, the main control module of the monitoring host 61 checks the dynamic and static cycle and determines whether the dynamic and static cycle is met. If the dynamic and static cycle is not met, the monitoring host 61 enters a dormant state; if the dynamic and static cycle is met, the monitoring host 61 starts to poll the slave node data, collects the current normal data through the smoke + temperature sensing module 62, and the pressure relief exhaust device opening and closing counting module 63 collects the current data, and locates the position of the container through the positioning module; after positioning is completed, the data is packaged and sent to the remote system platform.

[0113] When the situation inside the container is abnormal:

[0114] The monitoring host 61, the smoke + temperature sensing module 62 and the pressure relief exhaust device opening and closing counting module 63 are generally in a dormant state, while the monitoring host 61 and the smoke + temperature sensing module 62 will wake up at a fixed time.

[0115] When the smoke + temperature sensing module 62 wakes up at a fixed time, it will detect whether the sampling time of smoke concentration and temperature meets the time requirements. When the time requirements are met, the smoke + temperature sensing module 62 collects the smoke concentration and temperature values ​​of the environment at that time, and compares the data with the established threshold value. If the threshold value is exceeded, the alarm state will be recorded and the time will be accumulated, and it will be determined whether the recorded accumulated time exceeds the alarm delay time. If the alarm delay time is exceeded, it will enter the bus and send alarm data to the monitoring host 61.

[0116] When the monitoring host 61 wakes up at a scheduled time, it checks whether there is alarm information generated by the smoke and temperature sensing modules on the bus. When real-time abnormal alarm data enters the bus of the monitoring host 61, the monitoring host 61 issues an alarm and locates through the positioning module. After the positioning is completed, the data is packaged and sent to the remote system platform.

[0117] When the pressure in the box is greater than the set value, the vent is exhausted; the Hall sensor of the pressure relief and exhaust device opening and closing counting module 63 starts recording, the number of switches is increased by one and the data is saved; the pressure relief and exhaust device opening and closing counting module 63 enters sleep mode after completing the recording.

[0118] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0119] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0120] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0121] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0122] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, mechanisms, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, mechanisms, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0123] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A control method for a container for transporting lithium batteries, characterized in that: The invention comprises a box body (2), a pressure relief exhaust device (3), a flame retardant heat insulating component (4), a protective device (5) and a monitoring device (6), wherein the box body (2) comprises an outer layer (21), an inner layer (22) and an intermediate layer (23), the flame retardant heat insulating component (4) is arranged on the intermediate layer (23), the protective device (5) is arranged outside the outer layer (21), the pressure relief exhaust device (3) is arranged at the front end of the box body (2), and the monitoring device (6) is arranged on the box body (2); The monitoring and control methods are: S1: the monitoring host (61), the smoke and temperature sensing module (62), and the pressure relief exhaust device opening and closing counting module (63) are in a dormant state; S2: The monitoring host (61) and the smoke and temperature sensing module (62) wake up at a scheduled time; S3: The smoke and temperature sensing module (62) detects whether the sampling period meets the time requirement; S4: When the time requirement is not met, the smoke and temperature sensing module (62) continues to be in a dormant state; S5: When the time requirement is met, the smoke and temperature sensing module (62) collects the smoke concentration and temperature value of the environment at that time, and compares the collected smoke concentration and temperature value of the environment at that time with the predetermined threshold value; S6: If the smoke concentration and temperature values ​​of the environment collected at that time do not exceed the threshold, the system continues to sleep; S7: If any of the smoke concentration and temperature values ​​collected at the time exceeds the threshold, the alarm status will be recorded and the time will be accumulated; S8: Determine whether the recorded accumulated time exceeds the alarm delay time; S9: If the alarm delay time is not exceeded, the alarm will not be recorded and the system will enter sleep mode. S10: If the alarm delay time is exceeded, the accumulated alarm record data enters the bus, and the smoke + temperature sensor module (62) sends the alarm data to the monitoring host (61); S11: The monitoring host (61) checks whether the bus has alarm information generated by the smoke and temperature sensing modules; S12: When real-time abnormal alarm data enters the bus of the monitoring host (61), the monitoring host (61) issues an alarm and locates the location through the positioning module. After the location is completed, the data is packaged and sent to the remote system platform; S13: When no data enters the bus of the monitoring host (61), the main control module of the monitoring host (61) checks the dynamic and static cycle and determines whether the dynamic and static cycle is satisfied; S14: If the dynamic-static cycle is not satisfied, the monitoring host (61) enters a dormant state; S15: If the dynamic and static cycles are met, the monitoring host (61) starts to poll the slave node data, collects the current normal data through the smoke and temperature sensing modules, collects the current data through the pressure relief exhaust device opening and closing counting module, and locates the position of the container through the positioning module; S16: After the positioning is completed, the data is packaged and sent to the remote system platform; S17: When the pressure in the box is greater than the set value, the pressure relief exhaust device (3) is opened to exhaust; S18: The Hall sensor of the pressure relief exhaust device opening and closing counting module (63) starts recording, the number of opening and closing times is increased by one and the data is saved; S19: After the pressure relief exhaust device opening and closing counting module (63) completes the recording, it enters sleep mode.

2. A control method for a container for transporting lithium batteries according to claim 1, characterized in that: The rear end of the box body (2) is provided with a box door (24), and the box door (24) is provided in a double-leaf type. The bottom of the box body (2) is made of a steel bottom plate, and a plurality of bottom plate grooves (25) are symmetrically provided on both sides of the length direction of the steel bottom plate in the box body (2), and a bolting device (251) is provided in the bottom plate groove (25). The middle layer (23) is a steel buckle plate frame. The outer length, width and height dimensions of the box body (2) are 12192×2438×2896 mm, and the inner length, width and height dimensions are 11930×2290×2632 mm.

3. The control method for a container for transporting lithium batteries according to claim 1, characterized in that: The protective device (5) is a corrugated plate, which is divided into a first corrugated plate (51) and a second corrugated plate (52). The first corrugated plate (51) has a depth of 25 mm and is arranged on both sides of the box body (2). The second corrugated plate (52) has a standard thickness and is arranged on the top, front end and rear end of the box body (2).

4. The control method for a container for transporting lithium batteries according to claim 1, characterized in that: The pressure relief exhaust device (3) comprises a pressure relief window frame (31), a rotating structure (32) and a barrier net (33); a pressure relief port is provided at the front end of the box body (2); the pressure relief exhaust device (3) is arranged at the pressure relief port; the barrier net (33) is arranged on one side of the pressure relief window frame (31); the rotating structure (32) is arranged on the other side of the pressure relief window frame (31); the side of the pressure relief window frame (31) having the barrier net (33) is arranged inside the box body (2); and the side having the rotating structure (32) is arranged outside the box body (2).

5. A control method for a container for transporting lithium batteries according to claim 4, characterized in that: The rotating structure (32) comprises a rotating shaft (321), a pressure relief plate (322), an adsorption member (323) and an elastic member (324); the elastic member (324) comprises two members, the two elastic members (324) are respectively arranged at two ends of the rotating shaft (321) and connected to the pressure relief window frame (31); one side of the pressure relief plate (322) is rotatably connected to the pressure relief window frame (31) via the rotating shaft (321); the adsorption member (323) is respectively arranged on the pressure relief plate (322) and the pressure relief window frame (31); the pressure relief plate (322) and the pressure relief window frame (31) are attracted to each other via the adsorption member (323).

6. The control method for a container for transporting lithium batteries according to claim 1, characterized in that: The monitoring device (6) comprises a monitoring host (61), a smoke and temperature sensing module (62), and a pressure relief and exhaust device opening and closing counting module (63); the monitoring host (61) is arranged outside the box (2), the smoke and temperature sensing module (62) is arranged at the top of the box (2), and the pressure relief and exhaust device opening and closing counting module (63) is arranged on the pressure relief and exhaust device (3).

7. A control method for a container for transporting lithium batteries according to claim 6, characterized in that: The smoke + temperature sensing module (62) comprises a smoke sensor and a temperature sensor, the smoke sensor and the temperature sensor are integrated in one module, and the smoke + temperature sensing module (62) comprises a plurality of smoke + temperature sensing modules (62), which are dispersedly installed on the top of the box (2).

8. The control method for a container for transporting lithium batteries according to claim 6, characterized in that: The monitoring host (61) comprises a main control module, a communication module, a positioning module, an explosion-proof battery and a power conversion module, wherein the main control module is electrically connected to the communication module, the positioning module, the explosion-proof battery, the power conversion module, the smoke + temperature sensing module (62) and the pressure relief exhaust device opening and closing counting module (63) via an antenna.

9. The control method for a container for transporting lithium batteries according to claim 6, characterized in that: The pressure relief and exhaust device opening and closing counting module (63) consists of two parts, one part of which is fixedly mounted on the pressure relief and exhaust device (3), and the other part is mounted on a movable pressure relief plate (322).

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