Disassembling system of battery device

Abstract

The embodiment of the utility model provides a disassembling system of a battery device, the disassembling system comprises a disassembling device, a water supply device and a monitoring device, the disassembling device is provided with a placing groove for placing the battery device, and the top side of the placing groove is opened to form a working port; the water supply device is provided with a water outlet channel, and a water outlet of the water outlet channel is located above the working opening and used for injecting water into the containing groove. The monitoring device is provided with a monitoring area, the monitoring area is located above the working opening and faces the containing groove, the monitoring device is used for determining that the battery device is in a thermal runaway state, the number of the water outlets is multiple, and the monitoring area of the monitoring device is not lower than at least part of the water outlets. According to the disassembling system in the embodiment of the invention, the battery device can be cooled and extinguished by water from top to bottom; the cooling and fire extinguishing effects of water on the battery device from bottom to top in an immersion mode are facilitated; and the interference of water on the monitoring of the monitoring device can be reduced.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of battery recycling, and in particular to a disassembly system for a battery device. Background Art

[0002] During the recycling or repair process of the battery device, the battery device needs to be disassembled.

[0003] During the disassembly process of the battery device, the battery device may experience thermal runaway due to short circuit and other reasons, and then cause problems such as combustion and smoke, which has an adverse impact on the device, personnel and surrounding environment performing the disassembly operation. Utility Model Content

[0004] In view of this, the embodiments of the present application are intended to provide a battery device disassembly system that can suppress problems such as burning during the disassembly of the battery device.

[0005] To achieve the above purpose, the technical solution of the embodiment of the present application is implemented as follows:

[0006] The present application provides a disassembly system for a battery device, the disassembly system comprising:

[0007] A disassembly device, provided with a placement groove for placing the battery device, wherein the top side of the placement groove is open to form a working opening;

[0008] A water supply device, provided with a water outlet channel, wherein the water outlet of the water outlet channel is located above the working port for injecting water into the placement tank;

[0009] A monitoring device is provided with a monitoring area, wherein the monitoring area is located above the working port and toward the placement slot, and the monitoring device is used to determine whether the battery device is in a state of thermal runaway. There are multiple water outlets, and the monitoring area of ​​the monitoring device is not lower than at least part of the water outlets.

[0010] The disassembly system in the embodiment of the present application, by arranging the water outlet above the working port, is conducive to the water cooling and extinguishing the battery device from top to bottom; the water is accumulated in the placement tank, which is conducive to the water cooling and extinguishing the battery device from bottom to top by immersion. Through the monitoring device, it is conducive to timely discovering that the battery device is in a state of thermal runaway, reducing the risk of fire expansion, and also conducive to personnel staying away from the disassembly operation site, reducing the risk of water discharged from the water outlet directly contaminating the monitoring area, and helping to reduce the interference of water on the monitoring device.

[0011] In some embodiments, the water outlet channel includes an injection channel and a spray channel that are independent of each other, the water outlet includes a spray port and an injection port, the spray port connects the spray channel with its exterior, the injection port connects the injection channel with its exterior, the cross-sectional area of ​​the injection channel perpendicular to the water flow direction is greater than the cross-sectional area of ​​the spray channel perpendicular to the water flow direction, and the spray port is higher than the injection port. The spray port is used to spray water from top to bottom into the placement tank, which is conducive to the water breaking into droplets with a wider distribution range due to the effect of air resistance during the falling process, thereby facilitating the water to contact a wide area in the battery device, and facilitating improving the effect of suppressing thermal runaway; the water flow rate flowing out of the injection port is larger than that of the spray port, which is conducive to increasing the rising speed of the water level in the placement tank, and is conducive to faster increasing the submerged part of the battery device, thereby improving the fire extinguishing effect.

[0012] In some embodiments, in a projection perpendicular to the vertical direction, the projection of the spray port is located within the projection range of the working port;

[0013] And / or, the projection of the water injection port is located within the projection range of the working port.

[0014] In this way, it is beneficial to allow as much water sprayed from the spray port and the water injection port to enter the placement tank as possible, thereby improving the utilization rate of water and facilitating the improvement of fire extinguishing and cooling effects.

[0015] In some embodiments, the angle between the direction of the water injection port and the horizontal direction ranges from -10° to 0°. This helps reduce the probability of water discharged from the water injection port directly splashing outside the placement slot, and also helps reduce the probability of water discharged from the water injection port directly hitting the battery device and flushing the debris formed during disassembly out of the placement slot, so as to facilitate cleaning after the fire is extinguished.

[0016] In some embodiments, the disassembly device is a water jet cutter, which includes a water tank and a water jet generator, wherein the placement slot is provided in the water tank, at least part of the water jet generator is located above the working port and can move relative to the working port along a first direction, wherein the first direction intersects with the vertical direction, the water injection port is located on one side of the water jet generator along the first direction, and the spray port is located above the water jet generator. This reduces the risk of interference between the water jet generator and the water injection pipe and the spray pipe during movement, and helps reduce the probability of the water jet generator blocking the water injection port and the spray port during movement, so that the water sprayed from the water injection port and the spray port can directly reach the area where the battery device generates thermal runaway, thereby achieving better fire extinguishing and cooling effects.

[0017] In some embodiments, the water jet cutting machine further comprises a placement platform, the placement platform is located in the placement slot, the top of the placement platform is provided with a placement surface for placing the battery device, and the water injection port faces the central area of ​​the placement surface. In this way, the water sprayed from the water injection port can reach the battery device more quickly, thereby improving the fire extinguishing and cooling effects.

[0018] In some embodiments, the monitoring area of ​​the monitoring device is not lower than the water injection port, so as to reduce the probability of the water flow discharged from the water injection port directly impacting the monitoring area and reduce the probability of damage to the monitoring device.

[0019] In some embodiments, the distance between the spray port and the working port in the vertical direction is 1.5m to 2m. In this way, on the one hand, the space between the spray port and the working port can meet the movement requirements of the water jet generator; on the other hand, it is also conducive to the spread range of the water flow sprayed from the spray port to include complete coverage of the working port.

[0020] In some embodiments, the disassembly device is a water jet cutting machine, the water jet cutting machine includes a water tank and a water jet generator, the placement slot is provided in the water tank, at least part of the water jet generator is located above the working port and can move relative to the working port along a first direction, the first direction intersects with the vertical direction, the number of the monitoring devices is at least two, the monitoring area of ​​at least one of the monitoring devices is oriented along the first direction, and the monitoring area of ​​at least another monitoring device is oriented perpendicular to the first direction. In this way, the fields of view of the two monitoring devices complement each other, and during the movement of the water jet generator, even if the field of view of one of the two monitoring devices is blocked, it is difficult to block the field of view of the other at the same time, thereby reducing the monitoring blind area and facilitating timely detection of thermal runaway of the battery device.

[0021] In some embodiments, the monitoring device is higher than the water jet generator, thereby reducing the risk of the water jet generator colliding with the monitoring device during movement.

[0022] In some embodiments, the monitoring device includes an infrared camera. Thus, by monitoring the changes in infrared radiation of different regions of the battery device, the region with abnormal temperature rise can be identified in time, so as to achieve the purpose of identifying thermal runaway of the battery device.

[0023] In some embodiments, the disassembly system further comprises a disassembly room, wherein the disassembly room is provided with a disassembly space, wherein the disassembly device, the monitoring device and the water outlet are all located in the disassembly space, and the inner wall of the disassembly space is paved with fireproof material. Thus, by providing a disassembly room, it is helpful to limit the scope of fire spread, to reduce the risk of igniting other surrounding objects, and to buy more time for extinguishing the fire in the water supply device.

[0024] In some embodiments, the disassembly system further includes an exhaust device, the disassembly room is further provided with an exhaust passage, the exhaust passage connects the disassembly space with the outside of the disassembly room, and the exhaust device is provided in the exhaust passage to extract the gas in the disassembly space to the outside of the disassembly room. In this way, the smoke and dust generated by thermal runaway of the battery device can be discharged through the exhaust device, reducing the probability of smoke and dust blocking the monitoring device in the disassembled workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic diagram of a battery device in an embodiment of the present application;

[0026] Figure 2 This is a schematic diagram of a disassembly and assembly system in one embodiment of the present application;

[0027] Figure 3 for Figure 2 A schematic diagram of a portion of the disassembly and assembly system in another perspective;

[0028] Figure 4 This is a schematic diagram of a disassembly and assembly system in another embodiment of the present application;

[0029] Description of Reference Numerals

[0030] 10. Disassembling device; 10a. Placement slot; 10b. Working port; 11. Water storage tank; 12. Water jet generator; 13. Placement platform; 13a. Placement surface; 20. Water supply device; 21. Water outlet channel; 21a. Water outlet; 211. Water injection channel; 211a. Water injection port; 2111. Water injection switch valve; 212. Spray channel; 212a. Spray port; 2121. Spray switch valve; 213. Main channel; 22. Water tank; 30. Monitoring device; 30a. Monitoring area; 40. Disassembling room; 40a. Disassembling space; 40b. Exhaust channel; 50. Exhaust device; 100. Battery device; 120. Box; 121. First box; 122. Second box; 110. Battery cell. DETAILED DESCRIPTION

[0031] It should be noted that, in the absence of conflict, the embodiments and technical features in the embodiments of the present application can be combined with each other, and the detailed description in the specific implementation method should be understood as an explanation of the purpose of the present application and should not be regarded as an improper limitation on the present application.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification of this application and the above-mentioned drawings and any variations thereof are intended to cover non-exclusive inclusions.

[0033] In the description of the embodiments of the present application, the technical terms "first", "second", "third", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0034] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0035] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0036] In the description of the embodiments of the present application, for the convenience of explanation, Figure 3 and Figure 4 As shown, the direction of arrow X is the “first direction”. Figure 3 and Figure 4 As shown, the direction of arrow Y is the "second direction", such as Figure 2 and Figure 4 As shown, the direction of arrow Z is the “vertical direction”.

[0037] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "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, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0038] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, the technical term "contact" should be understood in a broad sense, and may be direct contact or contact through an intermediate medium layer. It may be contact with essentially no interaction force between the two contacting parties, or it may be contact with interaction force between the two contacting parties.

[0039] At present, batteries are increasingly used in life and industry. Batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but are also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric cars, and aerospace and other fields. With the continuous expansion of battery application areas, the market demand is also constantly expanding.

[0040] In the embodiment of the present application, the battery cell may be a secondary battery. A secondary battery refers to a battery cell that can be continuously used by activating active materials by charging after the battery cell is discharged.

[0041] The battery cell can be a lithium ion battery, a sodium ion battery, a sodium lithium ion battery, a lithium metal battery, a sodium metal battery, a lithium sulfur battery, a magnesium ion battery, a nickel hydrogen battery, a nickel cadmium battery, a lead storage battery, etc., which is not limited in the embodiments of the present application.

[0042] The battery apparatus mentioned in the embodiments of the present application may include one or more battery cell assemblies for providing voltage and capacity. The battery cell assembly may include multiple battery cells, which are connected in series, in parallel or in mixed connection through a busbar component.

[0043] In some embodiments, a battery cell assembly is generally formed by arranging a plurality of battery cells.

[0044] As an example, the battery cell assembly may be a battery module, which is formed by arranging and fixing a plurality of battery cells to form an independent module. As an example, the battery module may be formed by bundling a plurality of battery cells by a cable tie.

[0045] In some embodiments, see Figure 1 The battery device may be a battery pack, which includes a housing 120 and one or more battery cell assemblies, wherein the battery cell assemblies are accommodated in the housing 120 .

[0046] As an example, the battery cell assembly may be a battery module, and the battery cell assembly may be accommodated in the box body 120 by fixing the battery module in the box body 120 .

[0047] As an example, the battery cell assembly may also be accommodated in the case 120 by directly fixing a plurality of battery cells to the case 120 .

[0048] For example, see Figure 1 The box 120 may include a first box 121 and a second box 122. The first box 121 and the second box 122 are buckled together to form a closed space inside the box 120 to accommodate the battery monomer assembly. The closed space here means to cover or close, which can be sealed or unsealed. The first box 121 can be a top cover or a bottom plate.

[0049] As an example, the box body 120 may include a top cover, a frame, and a bottom plate. The top cover and the bottom plate are respectively connected to the frame, so that a closed space is formed inside the box body 120 to accommodate the battery cell assembly.

[0050] The battery devices in the technical solutions described in the embodiments of the present application are suitable for various electrical devices using battery cells, such as mobile phones, portable devices, laptop computers, electric vehicles, electric toys, electric tools, vehicles, ships and spacecraft, for example, spacecraft include airplanes, rockets, space shuttles and spacecraft, etc.

[0051] Below, the embodiments of the present application are described in detail.

[0052] During the disassembly of the battery device, the original structure of the battery device needs to be destroyed and disassembled, which may cause the battery cells in the battery device to short-circuit, thereby causing the battery device to experience thermal runaway. During the thermal runaway process, a large amount of heat and smoke will be generated, which is not conducive to the subsequent disassembly operation.

[0053] An embodiment of the present application provides a disassembly system for a battery device, wherein the disassembly system is provided with a placement slot for placing a battery device that needs to be disassembled; a water supply device of the disassembly system is used to inject water into the placement slot so as to extinguish a fire by water when thermal runaway occurs in the battery device during the disassembly process; and a monitoring device is used to monitor the disassembly device of the battery device so as to promptly detect thermal runaway of the battery device.

[0054] Specifically, see Figures 2 to 4 The disassembly system of the battery device 100 provided in the embodiment of the present application includes a disassembly device 10 , a water supply device 20 and a monitoring device 30 .

[0055] The disassembling device 10 is provided with a placement groove 10 a for placing the battery device 100 , and the top side of the placement groove 10 a is opened to form a working opening 10 b .

[0056] The water supply device 20 is provided with a water outlet channel 21 , and a water outlet 21 a of the water outlet channel 21 is located above the working port 10 b for injecting water into the placement tank 10 a .

[0057] The monitoring device 30 is provided with a monitoring area 30a, which is located above the working port 10b and facing the placement slot 10a. The monitoring device 30 is used to determine whether the battery device 100 is in a thermal runaway state. The number of water outlets 21a is multiple, and the monitoring area 30a of the monitoring device 30 is not lower than at least part of the water outlets 21a.

[0058] The disassembling device 10 is used for disassembling the battery device 100 .

[0059] The battery device 100 is placed in the placement slot 10 a for disassembly. That is, the placement slot 10 a forms a preset operation area for the disassembly, so that the disassembly device 10 can automatically perform the disassembly.

[0060] The working opening 10 b is used to place the battery device 100 into the placement groove 10 a , and the scraps formed after the disassembly are transported away from the disassembly device 10 through the working opening 10 b .

[0061] It is understandable that after the thermal runaway of the battery device 100 occurs, the flame is easily exposed to the upper surface of the battery device 100 .

[0062] The water outlet 21a is located above the working port 10b, which is conducive to the water being able to splash from top to bottom to the area where the flame occurs on the battery device 100 after being discharged from the water outlet, and is conducive to the water coming into contact with the area of ​​the battery device 100 where thermal runaway occurs more quickly, so as to achieve the heat insulation and flame retardant effects more quickly, and to achieve the fire extinguishing effect more quickly.

[0063] It is understandable that the placement groove 10a itself can be used as a water storage space, and the water discharged from the water outlet 21a can be accumulated in the placement groove 10a, so that the accumulated water can submerge at least part of the battery device 100, thereby achieving a better fire extinguishing effect.

[0064] The monitoring device 30 can obtain the current state of the battery device 100 through its monitoring area 30a, so as to send a signal in time after the battery device 100 has thermal runaway, so that personnel or a control device can control the water supply device 20 to inject water into the placement tank 10a.

[0065] The monitoring area 30a is located above the working port 10b, which is convenient for the monitoring area 30a to monitor the battery device 100 in the placement slot 10a from a high position, which is beneficial to expand the monitoring area 30a to the monitoring area 30a in the placement slot 10a, and is beneficial to reduce the monitoring blind area and improve the response speed to thermal runaway.

[0066] The water discharged from the water outlet 21a falls into the placement tank 10a under the action of gravity, and the monitoring area 30a is located above at least a part of the water outlet 21a.

[0067] The disassembly system in the embodiment of the present application, by arranging the water outlet 21a above the working port 10b, is conducive to the water cooling and extinguishing the battery device 100 from top to bottom; the water is accumulated in the placement tank 10a, which is conducive to the water cooling and extinguishing the battery device 100 from bottom to top by immersion. The monitoring device 30 is conducive to timely discovering that the battery device 100 is in a thermal runaway state, reducing the risk of fire expansion, and also helping personnel stay away from the disassembly operation site; reducing the risk of water discharged from the water outlet 21a directly contaminating the monitoring area 30a, which is conducive to reducing the interference of water on the monitoring of the monitoring device 30.

[0068] In some embodiments, see Figure 2 The water supply device 20 is also provided with a water storage tank 11, and the water outlet channel 21 is connected to the water storage tank 11 to inject the water in the water storage tank 11 into the placement groove 10a.

[0069] In this way, the water in the water storage tank 11 is used as a reserve, so as to reduce the probability of being unable to extinguish the fire when the external public water supply network is out of water.

[0070] The amount of water that can be stored in the water storage tank 11 ranges from 8 tons (tons) to 10 tons, so as to meet the needs of fire fighting.

[0071] The specific value of the amount of water that can be stored in the water storage tank 11 may be 8t, 9t, 10t, etc.

[0072] In some embodiments, the water outlet channel 21 is provided with a switch valve to control the opening or closing of the water outlet channel 21 , so that when the battery device 100 is in a state of thermal runaway, the switch valve opens the water outlet channel 21 to allow water to flow out.

[0073] In some embodiments, the water supply device 20 further includes a water pump, which is disposed in the water outlet channel 21 to discharge water after pressurization, so that the flow rate of water discharged from the water outlet 21a meets the fire extinguishing requirements. The water pump can be started and stopped manually or automatically.

[0074] The water pressure range of the water pump is 1Mpa (Megapascal) to 1.5Mpa, and the specific values ​​can be 1Mpa, 1.1Mpa, 1.25Mpa, 1.4Mpa, 1.5Mpa, etc.

[0075] In some embodiments, see Figures 2 to 4The water outlet channel 21 includes an injection channel 211 and a spray channel 212 that are independent of each other, the water outlet 21a includes a spray port 212a and an injection port 211a, the spray port 212a connects the spray channel 212 with its exterior, the injection port 211a connects the injection channel 211 with its exterior, the cross-sectional area of ​​the injection channel 211 perpendicular to the water flow direction is greater than the cross-sectional area of ​​the spray channel 212 perpendicular to the water flow direction, and the spray port 212a is higher than the injection port 211a.

[0076] See also Figure 4 The spray port 212a is higher than the water injection port 211a, that is, H1>H2. The reference for measuring the height of the two can be the bottom wall of the placement tank 10a.

[0077] The water in the spray channel 212 is discharged through the spray port 212a, and the water in the water injection channel 211 is discharged through the water injection port 211a.

[0078] The cross-sectional area of ​​the injection channel 211 perpendicular to the water flow direction is larger than the cross-sectional area of ​​the spray channel 212 perpendicular to the water flow direction, which is beneficial for the injection channel 211 to allow a flow rate of water to flow through that is greater than the flow rate of water to flow through the spray channel 212.

[0079] The spray port 212a is used to spray water into the placement groove 10a from top to bottom. The water flow rate discharged is less than that of the water injection port 211a and the water flows out from a higher height, which is beneficial for the water to be broken into droplets with a wider distribution range due to the effect of air resistance during the falling process, thereby facilitating the contact between the water and a wide area in the battery device 100, and improving the effect of suppressing thermal runaway.

[0080] The water flow rate flowing out of the water injection port 211a is larger than that of the spray port 212a, which is beneficial to increase the rising speed of the water level in the placement tank 10a, and is beneficial to increase the immersed part of the battery device 100 more quickly, thereby improving the fire extinguishing effect.

[0081] It is understandable that the flow rate that the water injection channel 211 can deliver is greater than the flow rate that the spray channel 212 can deliver.

[0082] The specific method of forming the spray port 212a is not limited. For example, the water supply device 20 includes a spray head, and the outlet of the spray head forms the spray port 212a.

[0083] The specific method of measuring the cross-sectional area of ​​the water injection channel 211 perpendicular to the water flow direction and the cross-sectional area of ​​the spray channel 212 perpendicular to the water flow direction is not limited. For example, a part of the structure of the water injection channel 211 is cut off perpendicular to the water flow direction, the cut-off structure is placed in the projection area of ​​the projection measuring instrument, the cross-sectional area of ​​the water injection channel 211 is selected on the projection measuring instrument, and the projection measuring instrument calculates its cross-sectional area size; a part of the structure of the spray channel 212 is cut off perpendicular to the water flow direction, the cut-off structure is placed in the projection area of ​​the projection measuring instrument, the cross-sectional area of ​​the spray channel 212 is selected on the projection measuring instrument, and the projection measuring instrument calculates its cross-sectional area size.

[0084] It can be understood that the cross-sectional area of ​​the water injection port 211 a is larger than the cross-sectional area of ​​the spray port 212 a .

[0085] In some embodiments with a water storage tank 22, see Figure 2 The water outlet channel 21 also includes a main channel 213. The inlet of the water injection channel 211 and the inlet of the spray channel 212 are respectively connected to the main channel 213. The main channel 213 is connected to the water storage tank 22. The water injection channel 211 is provided with a water injection switch valve 2111, and the spray channel 212 is provided with a spray switch valve 2121, so as to control the conduction and cutoff of the water injection channel 211 and the spray channel 212 manually or automatically.

[0086] The cross section of the main channel perpendicular to the water flow direction is circular, and its diameter ranges from 40mm (millimetre) to 60mm to meet the needs of fire extinguishing.

[0087] The specific diameter of the main channel can be 40mm, 50mm, 60mm, etc.

[0088] In some embodiments, see Figure 3 In the projection perpendicular to the vertical direction, the projection of the spray port 212a is located within the projection range of the working port 10b.

[0089] The vertical direction is the direction in which the straight line in which gravity points extends.

[0090] In this way, it is beneficial to allow the water sprayed from the spray port 212a to enter the placement groove 10a as much as possible, thereby improving the utilization rate of water and improving the fire extinguishing and cooling effects.

[0091] In some embodiments, see Figure 3 In the projection perpendicular to the vertical direction, the projection of the water injection port 211a is located within the projection range of the working port 10b.

[0092] In this way, it is beneficial to allow the water sprayed from the water injection port 211a to enter the placement tank 10a as much as possible, thereby improving the utilization rate of water and facilitating the improvement of fire extinguishing and cooling effects.

[0093] In some embodiments, see Figure 4 The angle between the direction of the water injection port 211a and the horizontal direction ranges from -10° to 0°, that is, -10°≤α≤0°.

[0094] The angle value of α is a negative value, indicating that the direction of the water injection port 211 a is obliquely downward.

[0095] This helps reduce the probability of water discharged from the water injection port 211a directly splashing outside the placement groove 10a, and also helps reduce the probability of water discharged from the water injection port 211a directly hitting the battery device 100 and flushing the debris formed during disassembly out of the placement groove 10a, so as to facilitate cleaning after the fire is extinguished.

[0096] The angle between the direction of the water injection port 211a and the horizontal direction can specifically be -10°, -9°, 8°, -7°, -6°, -5°, -4°, -3°, -2°, -1°, 0°, etc.

[0097] The number of the water injection port 211 a may be one or more.

[0098] Plurality refers to two or more.

[0099] The number of the spray ports 212a may be plural or multiple.

[0100] It is understandable that the arrangement of the water injection port 211 a and the spray port 212 a needs to be adapted to the specific type of the disassembling device 10 .

[0101] In some embodiments, see Figures 2 to 4 The disassembly device 10 is a water jet cutting machine, which includes a water tank 22 and a water jet generator 12. The placement groove 10a is arranged in the water tank 22. At least part of the water jet generator 12 is located above the working port 10b and can move relative to the working port 10b along a first direction, and the first direction intersects with the vertical direction.

[0102] The water jet generator 12 is used to spray high-pressure water to cut the battery device 100. The water jet generator 12 is moved so as to cut various areas of the battery device 100. The water jet generated by the water jet generator 12 can take away the heat generated during the disassembly of the battery device 100, which is helpful to reduce the risk of thermal runaway.

[0103] It should be noted that the devices and principles related to the water jet generator 12 for emitting high-pressure water flow to achieve the purpose of cutting have been applied in the relevant technology and will not be elaborated here.

[0104] It is understandable that the water jetted from the water jet generator 12 is of high pressure but low flow rate, and it is difficult to directly rely on the water jetted from the water jet generator 12 to quickly extinguish the fire and cool down the area where the thermal runaway of the battery device 100 occurs. Therefore, injecting water into the placement groove 10a through the water outlet channel 21 can better achieve the effect of quickly extinguishing the fire and cooling down.

[0105] In some embodiments, see Figure 3 and Figure 4 The water injection port 211a is located on one side of the water jet generator 12 along the first direction, which reduces the risk of interference between the water jet generator 12 and the water injection pipe during movement, and is beneficial to reducing the probability of the movement of the water jet generator 12 blocking the water injection port 211a, so that the water sprayed from the water injection port 211a can directly reach the area where the battery device 100 produces thermal runaway, thereby achieving better fire extinguishing and cooling effects.

[0106] In some embodiments, see Figure 3 and Figure 4 The spray port 212a is located above the water jet generator 12, which reduces the risk of interference between the water jet generator 12 and the spray pipe during movement, and is beneficial to reducing the probability of the movement of the water jet generator 12 blocking the spray port 212a, so that the water sprayed from the spray port 212a can directly reach the area where the battery device 100 produces thermal runaway, thereby achieving better fire extinguishing and cooling effects.

[0107] In some embodiments, see Figure 3 The water jet cutting machine further comprises a placement platform 13, which is located in the placement groove 10a. A placement surface 13a for placing the battery device 100 is provided on the top of the placement platform 13, and the water injection port 211a faces the central area of ​​the placement surface 13a.

[0108] The placement platform 13 is used to carry the battery device 100 and is provided with a guide groove so as to guide the water sprayed by the water jet generator 12 out and recycle it.

[0109] The central area of ​​the placement surface 13a, i.e. Figure 3The area enclosed by the two dot-dash lines spaced in the first direction and the two dot-dash lines spaced perpendicular to the first direction. The central area refers to the area whose size in the first direction accounts for 50% of the total size of the placement surface 13a in the first direction, that is, L1=0.5*L2; and the distance between the area and the two ends of the placement surface 13a in the first direction is 25% of the total size of the placement surface 13a in the first direction, that is, L3=0.25*L2; and the size of the area perpendicular to the first direction accounts for 50% of the total size of the placement surface 13a perpendicular to the first direction, that is, L4=0.5*L5; and the distance between the area and the two ends of the placement surface 13a perpendicular to the first direction is 25% of the total size of the placement surface 13a perpendicular to the first direction, that is, L6=0.25*L5.

[0110] The water injection port 211 a faces the central area of ​​the placement surface 13 a , which means that a straight line passing through the center of the water injection port 211 a along the water flow direction passes through the central area.

[0111] It is understandable that in order to accommodate battery devices 100 of different sizes and the travel range of the water jet generator 12, the battery device 100 is preferentially placed in the central area.

[0112] This helps to make the water sprayed from the water injection port 211 a reach the battery device 100 more quickly, thereby improving the fire extinguishing and temperature reduction effects.

[0113] It can be understood that, since the flow rate of water sprayed from the water injection port 211a is relatively large, the impact force generated by the water flow is relatively large.

[0114] In some embodiments, see Figure 4 , the monitoring area 30a of the monitoring device 30 is not lower than the water injection port 211a.

[0115] In this way, the probability of the water discharged from the water injection port 211a directly impacting the monitoring area 30a is reduced, and the probability of damage to the monitoring device 30 is reduced.

[0116] In some embodiments, see Figure 4 The vertical distance between the spray port 212a and the working port 10b is 1.5m (meter) to 2m. That is, 1.5m≤H5≤2m.

[0117] In this way, on the one hand, it is beneficial for the space between the spray port 212a and the working port 10b to meet the movement requirements of the water jet generator 12; on the other hand, it is also beneficial for the spread range of the water flow sprayed from the spray port 212a to include complete coverage of the working port 10b.

[0118] In some embodiments, see Figure 4The vertical distance between the spray port 212a and the placement surface 13a is 1.5m to 2.5m.

[0119] In this way, the water flow sprayed out from the spray port 212 a can spread over a range that completely covers the battery device 100 on the placement surface 13 a .

[0120] In some embodiments with a water jet cutter, see Figures 2 to 4 The number of monitoring devices 30 is at least two, the monitoring area 30a of at least one monitoring device 30 is oriented along the first direction, and the monitoring area 30a of at least another monitoring device 30 is oriented perpendicular to the first direction.

[0121] In this way, the fields of view of the two monitoring devices 30 can complement each other, and even if the field of view of one of the two monitoring devices 30 is blocked during the movement of the water jet generator 12, it is difficult to block the field of view of the other one at the same time, thereby helping to reduce the monitoring blind spots and facilitating timely detection of thermal runaway of the battery device 100.

[0122] In some embodiments, see Figure 4 The monitoring device 30 is higher than the water jet generator 12, that is, H3>H4, and the reference for measuring the heights of the two can be the ground of the dismantling system.

[0123] In this way, the risk of the water jet generator 12 colliding with the monitoring device 30 during movement is reduced.

[0124] It is understandable that due to the large number of components in the battery device 100, more debris is generated after disassembly. Therefore, in the initial stage of thermal runaway of the battery device 100, the flame and smoke generated are relatively small and are easily obscured by the debris and difficult to be observed.

[0125] The specific type of the monitoring device 30 is not limited, and may include, for example, a common camera for acquiring changes in visible light in different areas of the battery device 100 .

[0126] In some embodiments, the monitoring device 30 includes an infrared camera. Thus, by monitoring the changes in infrared radiation of different regions of the battery device 100, regions with abnormal temperature rise can be identified in a timely manner, thereby achieving the purpose of identifying thermal runaway of the battery device 100.

[0127] It is understandable that in the embodiment where there are multiple monitoring devices 30, some of the monitoring devices 30 may be infrared cameras; or all of the monitoring devices 30 may be infrared cameras.

[0128] In some embodiments, see Figure 4The disassembly system further comprises a disassembly room 40, which is provided with a disassembly space 40a, in which the disassembly device 10, the monitoring device 30 and the water outlet 21a are all located, and the inner wall of the disassembly space 40a is paved with fireproof material.

[0129] In this way, by setting up the disassembly room 40, it is helpful to limit the scope of fire spread, reduce the risk of igniting other surrounding objects, and also buy more time for extinguishing the fire in the water supply device 20.

[0130] The specific types of fireproof materials used may be rock wool board, silicate board, etc.

[0131] In some embodiments, see Figure 4 The disassembly system also includes an exhaust device 50. The disassembly room 40 is also provided with an exhaust channel 40b, which connects the disassembly space 40a with the outside of the disassembly room 40. The exhaust device 50 is arranged in the exhaust channel 40b to extract the gas in the disassembly space 40a to the outside of the disassembly room 40.

[0132] In this way, smoke and dust generated by thermal runaway of the battery device 100 can be discharged through the exhaust device 50 , thereby reducing the probability of smoke and dust blocking the monitoring device 30 in the disassembled workpiece.

[0133] The specific type of the exhaust device 50 is not limited, for example, an axial flow blower, a fan, etc.

[0134] In some embodiments with a spray channel 212, see Figure 4 At least a portion of the spray channel 212 is disposed on a top wall of the disassembly space 40 a so as to fix at least a portion of the spray channel 212 .

[0135] In some embodiments, the disassembly system further includes a control device, which is electrically connected to the disassembly device 10, the water supply device 20 and the monitoring device 30 respectively.

[0136] The control device can obtain the image data of the battery device 100 sent by the monitoring device 30, determine that the battery device 100 is in a thermal runaway state according to the image data, and then control the water supply device 20 to supply water to the placement tank 10a, so as to realize the automatic control of the fire extinguishing operation.

[0137] In some embodiments, the disassembly system further includes a smoke alarm device, which is disposed on the inner wall of the disassembly room 40 to obtain smoke information to determine whether the battery device 100 is in a thermal runaway state. In this way, the smoke alarm device cooperates with the monitoring device 30 to improve the accuracy of detecting thermal runaway.

[0138] In some embodiments provided with a control device, the disassembly system further includes a warning light, and the control device is electrically connected to the warning light for controlling the warning light to emit a light signal when it is determined that the battery device 100 is in a thermal runaway state, so as to remind personnel that the battery device 100 is in a thermal runaway state.

[0139] The disassembly system in a specific embodiment of the present application is as follows:

[0140] The disassembly system includes a disassembly device 10, a water supply device 20, a monitoring device 30, a disassembly room 40 and an exhaust device 50. The disassembly device 10 is provided with a placement slot 10a for placing the battery device 100, and the top side of the placement slot 10a is opened to form a working port 10b; the water supply device 20 is provided with a water outlet channel 21, and the water outlet 21a of the water outlet channel 21 is located above the working port 10b for injecting water into the placement slot 10a; the monitoring device 30 is provided with a monitoring area 30a, and the monitoring area 30a is located above the working port 10b and faces the placement slot 10a. The monitoring device 30 is used to determine whether the battery device 100 is 0 is in a state of thermal runaway. The water outlet channel 21 includes an injection channel 211 and a spray channel 212 which are independent of each other. The water outlet 21a includes a spray port 212a and an injection port 211a. The spray port 212a connects the spray channel 212 with its exterior, and the injection port 211a connects the injection channel 211 with its exterior. The cross-sectional area of ​​the injection channel 211 perpendicular to the water flow direction is greater than the cross-sectional area of ​​the spray channel 212 perpendicular to the water flow direction, and the spray port 212a is higher than the injection port 211a. In the projection perpendicular to the vertical direction, the projection of the spray port 212a is located within the projection range of the working port 10b, and the projection of the injection port 211a is located within the projection range of the working port 10b. The angle between the direction of the injection port 211a and the horizontal direction ranges from -10° to 0°. The disassembly device 10 is a water jet cutting machine, which includes a water tank 22, a water jet generator 12 and a placement platform 13. The placement tank 10a is provided in the water tank 22. At least part of the water jet generator 12 is located above the working port 10b and can move relative to the working port 10b along a first direction, the first direction intersects with the vertical direction, the water injection port 211a is located on one side of the water jet generator 12 along the first direction, and the spray port 212a is located above the water jet generator 12. The placement platform 13 is located in the placement tank 10a. The top of the placement platform 13 is provided with a placement surface 13a for placing the battery device 100. The water injection port 211a faces the central area of ​​the placement surface 13a. The monitoring area 30a of the monitoring device 30 is not lower than the water injection port 211a. The distance between the spray port 212a and the working port 10b in the vertical direction is 1.5m to 2m. The number of monitoring devices 30 is at least two, the monitoring area 30a of at least one monitoring device 30 is oriented along the first direction, and the monitoring area 30a of at least another monitoring device 30 is oriented perpendicular to the first direction. The monitoring device 30 is higher than the water jet generator 12. The monitoring device 30 includes an infrared camera. The disassembly room 40 is provided with a disassembly space 40a and an exhaust passage 40b, the disassembly device 10, the monitoring device 30 and the water outlet 21a are all located in the disassembly space 40a, and the inner wall of the disassembly space 40a is paved with fireproof material. The exhaust passage 40b connects the disassembly space 40a with the outside of the disassembly room 40, and the exhaust device 50 is arranged in the exhaust passage 40b to extract the gas in the disassembly space 40a to the outside of the disassembly room 40.

[0141] The various embodiments / implementations provided in this application can be combined with each other without causing any contradiction.

[0142] The above is only a preferred embodiment of the present application and is not intended to limit the embodiments in the present application. For those skilled in the art, the embodiments of the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the embodiments of the present application shall be included in the protection scope of the embodiments of the present application.

Claims

1. A disassembly system for a battery device, It is characterized in that The disassembly system comprises: A disassembly device, provided with a placement groove for placing the battery device, wherein the top side of the placement groove is open to form a working opening; A water supply device, provided with a water outlet channel, wherein the water outlet of the water outlet channel is located above the working port for injecting water into the placement tank; A monitoring device is provided with a monitoring area, wherein the monitoring area is located above the working port and toward the placement slot, and the monitoring device is used to determine whether the battery device is in a state of thermal runaway. There are multiple water outlets, and the monitoring area of ​​the monitoring device is not lower than at least part of the water outlets.

2. The disassembly system according to claim 1, It is characterized in that The water outlet channel includes a water injection channel and a spray channel that are independent of each other, and the water outlet includes a spray port and a water injection port. The spray port connects the spray channel with the outside, and the water injection port connects the water injection channel with the outside. The cross-sectional area of ​​the water injection channel perpendicular to the water flow direction is larger than the cross-sectional area of ​​the spray channel perpendicular to the water flow direction, and the spray port is higher than the water injection port.

3. The disassembly system according to claim 2, It is characterized in that In a projection perpendicular to the vertical direction, the projection of the spray port is located within the projection range of the working port; And / or, the projection of the water injection port is located within the projection range of the working port.

4. The disassembly system according to claim 2, It is characterized in that The angle between the water injection port and the horizontal direction ranges from -10° to 0°.

5. The disassembly system according to claim 2, It is characterized in that The disassembly device is a water jet cutting machine, which includes a water tank and a water jet generator. The placement groove is arranged in the water tank. At least part of the water jet generator is located above the working port and can move relative to the working port along a first direction. The first direction intersects with the vertical direction. The water injection port is located on one side of the water jet generator along the first direction, and the spray port is located above the water jet generator.

6. The disassembly system according to claim 5, It is characterized in that The water jet cutting machine further comprises a placement platform, which is located in the placement groove. A placement surface for placing the battery device is provided on the top of the placement platform, and the water injection port faces the central area of ​​the placement surface.

7. The disassembly system according to claim 2, It is characterized in that The monitoring area of ​​the monitoring device is not lower than the water injection port.

8. The disassembly system according to claim 2, It is characterized in that The vertical distance between the spray port and the working port is 1.5m to 2m.

9. The disassembly system according to claim 1, It is characterized in that The disassembly device is a water jet cutting machine, which includes a water tank and a water jet generator. The placement groove is arranged in the water tank. At least part of the water jet generator is located above the working port and can move relative to the working port along a first direction. The first direction intersects with the vertical direction. The number of the monitoring devices is at least two. The monitoring area of ​​at least one of the monitoring devices is oriented along the first direction, and the monitoring area of ​​at least another monitoring device is oriented perpendicular to the first direction.

10. The disassembly system according to claim 9, It is characterized in that The monitoring device is higher than the water jet generator.

11. The disassembly system according to claim 1, It is characterized in that The monitoring device includes an infrared camera.

12. The disassembly system according to claim 1, It is characterized in that The disassembly system further comprises a disassembly room, wherein the disassembly room is provided with a disassembly space, wherein the disassembly device, the monitoring device and the water outlet are all located in the disassembly space, and the inner wall of the disassembly space is paved with fireproof material.

13. The disassembly system according to claim 12, It is characterized in that The disassembly system further includes an exhaust device, and the disassembly room is further provided with an exhaust passage, which connects the disassembly space with the outside of the disassembly room. The exhaust device is arranged in the exhaust passage to extract the gas in the disassembly space to the outside of the disassembly room.

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