Two-wheeled vehicle battery explosion-proof method, device, equipment and medium

Abstract

The invention discloses a two-wheeled vehicle battery anti-explosion method, device and equipment and a medium, the air pressure in a battery shell is detected through an air pressure detection unit, so that effective early warning can be performed according to the air pressure in the shell and the change speed, a rider is reminded to find danger as early as possible, and the safety of the rider is improved. Therefore, a rider can reasonably select risk avoidance measures according to different early warning signals, and property loss is reduced as much as possible while the safety of the rider is ensured. Meanwhile, high-pressure air flow in the battery can enter the second hole section from the bottom end of the second hole section, the explosion-proof plate slides upwards under the impact force of the high-pressure air flow, and when the explosion-proof plate is jacked to be higher than the bottom end of the communication groove by the air flow, the top end of the first hole section is communicated with the second hole section through the communication groove, so that the high-pressure air flow can be conveniently and quickly discharged; battery explosion is avoided, and the possibility of injury to a rider can be further reduced.

Description

Technical Field

[0001] The present application relates to the field of two-wheeled vehicles, and in particular to a method, device, equipment and medium for explosion-proofing batteries for two-wheeled vehicles. Background Art

[0002] During battery operation, if a battery cell experiences an anomaly such as an internal short circuit or thermal runaway, the pressure inside the battery casing will explode. As the pressure continues to rise and exceeds the casing's pressure threshold, it can not only rupture the casing but also potentially trigger a violent explosion. This can damage the equipment and pose a serious threat to personal safety. Therefore, effectively preventing battery explosions and minimizing the damage caused by battery failures has become an urgent issue. Summary of the Invention

[0003] The present application aims to propose a two-wheeled vehicle battery explosion-proof method, device, equipment and medium, which can achieve better explosion-proof effect.

[0004] A first embodiment of the present application provides an explosion-proof method for a two-wheeled vehicle battery, wherein the battery includes a housing and a cell module, an air pressure detection unit, and a control unit arranged in the housing, wherein the air pressure detection unit is electrically connected to the control unit; the housing includes a shell and a cover, the cover is provided with an explosion-proof assembly, the explosion-proof assembly includes a mounting seat and an explosion-proof plate, the mounting seat is mounted on the cover, the mounting seat is provided with an air vent extending vertically, the air vent includes a first hole segment and a second hole segment, the second hole segment is located below the first hole segment, the aperture of the second hole segment is smaller than the aperture of the first hole segment, the hole wall of the first hole segment is provided with a connecting groove, the connecting groove extends vertically, the explosion-proof plate is slidably installed in the first hole segment and covers the top of the second hole segment; wherein, when the explosion-proof plate can be lifted by the airflow in the battery housing to a level higher than the bottom end of the connecting groove, the top end of the first hole segment is connected to the second hole segment through the connecting groove; the air pressure detection unit is used to detect the air pressure in the housing; The two-wheeled vehicle battery explosion-proof method comprises: Acquiring current in-shell air pressure data collected by the air pressure detection unit; When the current air pressure data inside the shell is higher than or equal to a first preset air pressure threshold, a first alarm signal is issued; When the current air pressure data inside the shell is higher than or equal to a first preset air pressure threshold, determining a change trend of the air pressure inside the shell according to the current air pressure data inside the shell and pre-acquired historical air pressure data inside the shell; When the pressure change trend in the shell indicates that the pressure increase rate in the shell remains unchanged or accelerates, a second alarm signal is issued.

[0005] According to a second aspect of the present application, a two-wheeled vehicle battery explosion-proof device is provided. The battery includes a housing and a battery cell module, an air pressure detection unit, and a control unit arranged in the housing, wherein the air pressure detection unit is electrically connected to the control unit; the housing includes a shell and a cover, the cover is provided with an explosion-proof assembly, the explosion-proof assembly includes a mounting seat and an explosion-proof plate, the mounting seat is mounted on the cover, the mounting seat is provided with an air vent extending vertically, the air vent includes a first hole segment and a second hole segment, the second hole segment is located below the first hole segment, the aperture of the second hole segment is smaller than the aperture of the first hole segment, the hole wall of the first hole segment is provided with a connecting groove, the connecting groove extends vertically, the explosion-proof plate is slidably installed in the first hole segment and covers the top of the second hole segment; wherein, when the explosion-proof plate can be lifted by the airflow in the battery housing to a level higher than the bottom end of the connecting groove, the top end of the first hole segment is connected to the second hole segment through the connecting groove; the air pressure detection unit is used to detect the air pressure in the housing; The two-wheeled vehicle battery explosion-proof device comprises: An air pressure acquisition module, used to obtain the current air pressure data inside the shell collected by the air pressure detection unit; a first alarm module, configured to issue a first alarm signal when the current air pressure data inside the shell is higher than or equal to a first preset air pressure threshold; an air pressure trend determining module, configured to determine a pressure change trend of the shell according to the current shell pressure data and pre-acquired historical shell pressure data when the current shell pressure data is higher than or equal to a first preset pressure threshold; The second alarm module is configured to send out a second alarm signal when the pressure change trend in the shell indicates that the pressure increase rate in the shell remains unchanged or accelerates.

[0006] According to an electronic device of an embodiment of a third aspect of the present application, the device includes: a processor and a memory storing computer program instructions; When the processor executes the computer program instructions, the two-wheeled vehicle battery explosion-proof method as described in the first aspect is implemented.

[0007] According to the computer-readable storage medium of the fourth embodiment of the present application, computer-executable instructions are stored, and the computer-executable instructions are used to execute the two-wheeled vehicle battery explosion-proof method as described in the first embodiment above.

[0008] The two-wheeled vehicle battery explosion-proof method, device, equipment and medium of the embodiment of the present application detects the air pressure in the battery shell through the air pressure detection unit, so that according to the level of the air pressure in the shell and the speed of change, an effective early warning can be issued to remind the rider to detect the danger as early as possible, so that the rider can reasonably select risk avoidance measures according to different early warning signals, while ensuring their own safety and minimizing property losses. At the same time, the high-pressure airflow in the battery can enter the second hole segment from the bottom end of the second hole segment, and the explosion-proof plate slides upward due to the impact of the high-pressure airflow. When the explosion-proof plate is lifted by the airflow to a level higher than the bottom end of the connecting groove, the top of the first hole segment is connected to the second hole segment through the connecting groove, thereby facilitating the rapid discharge of the high-pressure airflow, avoiding battery explosion, and further reducing the possibility of injury to the rider.

[0009] Other features and advantages of the present application will be set forth in the following description, and in part will be apparent from the description, or may be learned by practicing the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which: Figure 1 This is a flow chart of the explosion-proof method for a two-wheeled vehicle battery according to an embodiment of the present application; Figure 2 An electrical system diagram of a battery according to an embodiment of the present application; Figure 3 A partial cross-sectional view of the cover body of an embodiment of the present application; Figure 4 for Figure 3 Schematic diagram of the explosion-proof plate in another position; Figure 5 This is a schematic diagram of the overall structure of the box body according to an embodiment of the present application (the ventilation groove is provided on the second side); Figure 6 This is a schematic diagram of the overall structure of the box body according to an embodiment of the present application (the ventilation groove is provided in the shell); Figure 7 This is a schematic structural diagram of a battery cell module according to an embodiment of the present application; Figure 8 This is a schematic diagram of the installation of the tab assembly according to an embodiment of the present application; Figure 9 for Figure 8 Enlarged view of point A in the middle; Figure 10 This is a schematic structural diagram of the flame retardant module of an embodiment of the present application.

[0011] Reference numerals: Box 100; housing 101; cover 102; first side 103; second side 104; elastic band 105; side panel 106; ventilation groove 107; mounting hole 108; Battery module 200; battery cell 201; tab 202; clamping structure 203; clip 204; mounting plate 205; clearance groove 206; Flame retardant module 300; isolation plate 301; hot aerosol fire extinguisher 302; diversion channel 303; discharge port 304; heat conduction hole 305; diversion pipe 306; connecting channel 307; Explosion-proof assembly 400; mounting base 401; explosion-proof plate 402; vent hole 403; first hole section 404; second hole section 405; connecting groove 406; elastic member 407; connecting portion 408; elastic sheet 409; mounting portion 410; mounting ring 411; protruding ring 412; threaded hole 413; stud 414; sealing ring 415; Control unit 501 , component pressure relief detection unit 502 , air pressure detection unit 503 , cover pressure relief detection unit 504 , temperature sensor 505 , alarm module 506 . DETAILED DESCRIPTION

[0012] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.

[0013] In the description of this application, if there is a description of first, second, etc., it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0014] In the description of this application, it should be understood that descriptions involving orientation, such as the orientation or positional relationship indicated by up, down, etc., are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0015] In the description of this application, it should be noted that, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technical personnel in the relevant technical field can reasonably determine the specific meaning of the above terms in this application based on the specific content of the technical solution.

[0016] The technical solution of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the embodiments described below are only part of the embodiments of the present application, not all of the embodiments.

[0017] In order to better describe the two-wheeled vehicle battery explosion-proof method, device, equipment and medium of the embodiment of the present application, a battery is proposed here, with reference to Figures 2 to 10 The battery includes a box body 100 and a cell module 200, an air pressure detection unit 503, and a control unit 501 arranged in the box body 100. The air pressure detection unit 503 is electrically connected to the control unit 501. The box body 100 includes a shell 101 and a cover body 102. The cover body 102 is provided with an explosion-proof component 400. The explosion-proof component 400 includes a mounting seat 401 and an explosion-proof plate 402. The mounting seat 401 is installed on the cover body 102. The mounting base 401 is provided with an air vent 403 running through from top to bottom, and the air vent 403 includes a first hole section 404 and a second hole section 405, the second hole section 405 is located below the first hole section 404, the aperture of the second hole section 405 is smaller than the aperture of the first hole section 404, and the hole wall of the first hole section 404 is provided with a connecting groove 406, which extends vertically, and the explosion-proof plate 402 is slidably installed in the first hole section 404 and covers the top of the second hole section 405; wherein, when the explosion-proof plate 402 can be lifted by the airflow in the battery shell 101 to a level higher than the bottom end of the connecting groove 406, the top of the first hole section 404 is connected to the second hole section 405 through the connecting groove 406; the air pressure detection unit 503 is used to detect the air pressure in the shell 101.

[0018] The high-pressure airflow in the above-mentioned battery can enter the second hole segment 405 from the bottom end of the second hole segment 405, and the explosion-proof plate 402 slides upward due to the impact force of the high-pressure airflow. When the explosion-proof plate 402 is lifted by the airflow to a level higher than the bottom end of the connecting groove 406, the top end of the first hole segment 404 is connected to the second hole segment 405 through the connecting groove 406, thereby facilitating the rapid discharge of the high-pressure airflow, avoiding battery explosion, and further reducing the possibility of injury to the rider.

[0019] The cover 102 can be mounted on the top of the battery housing 101 in a variety of ways. For example, it can be mounted on the battery housing 101 by bolts, or one end of the cover 102 can be hinged to the top of the battery housing 101, while the other end can be snap-fitted to the top of the battery housing 101. By opening the cover 102, the battery cells 201 and other components inside the battery can be inspected, repaired, or replaced.

[0020] Under normal circumstances, the explosion-proof plate 402 can cover the top of the second hole section 405, thereby preventing external dust and rainwater from entering the battery through the air vent 403 and affecting the components inside the battery.

[0021] The control unit 501 may directly use the core controller of the battery management system of the battery, or may use a separate controller. The specific use method may be comprehensively selected based on actual control requirements, cost and other factors.

[0022] The air pressure detection unit 503 can be set in any area of ​​the housing 101. The control unit 501 can determine whether the air pressure is abnormal by obtaining the air pressure data in the housing 101 collected by the air pressure detection unit 503, and issue an alarm. For example, an alarm can be issued if the air pressure exceeds a preset safety pressure threshold. There are many alarm methods. For example, an independent alarm module 506 can be set, and the alarm module 506 is controlled by the control unit 501 to complete the alarm. When the control unit 501 is connected to a wireless communication module, the alarm can also be completed by pushing a message to the rider's smart terminal.

[0023] The air pressure detection unit 503 can be set in any area of ​​the housing 101 that is connected to the air vent 403, so that while detecting the pressure in the housing 101, the pressure relief state of the explosion-proof plate 402 can also be determined by detecting the change in pressure. For example, when the air pressure rises in the battery housing 101, an alarm can be issued first. When the air pressure rises to a certain level, the explosion-proof plate 402 releases the pressure, and the pressure in the housing 101 drops rapidly and does not continue to rise, it means that the battery failure is not serious or it may be a short-term temperature increase caused by weather reasons. If the air pressure continues to rise after exceeding the safety pressure threshold and does not decrease due to the pressure relief of the explosion-proof plate 402, it means that the current explosion risk is extremely high. Different levels of warnings can be issued for different levels of urgency so that the rider can take reasonable avoidance measures.

[0024] The air pressure detection unit 503 can directly adopt a common pressure detection sensor on the market.

[0025] Reference below Figures 1 to 10 The present invention describes a method, device, apparatus, and medium for preventing explosion of a two-wheeled vehicle battery according to an embodiment of the present application.

[0026] like Figure 1 As shown, Figure 1 Flowchart of the two-wheeled vehicle battery explosion-proof method according to an embodiment of the present application, which is applied to the control unit 501 and includes steps S100 to S400; Step S100, obtaining the current air pressure data in the shell collected by the air pressure detection unit 503; Step S200: When the current air pressure data inside the shell is higher than or equal to a first preset air pressure threshold, a first alarm signal is issued; Step S300: When the current air pressure data inside the shell is higher than or equal to a first preset air pressure threshold, determine the change trend of the air pressure inside the shell based on the current air pressure data inside the shell and the previously acquired historical air pressure data inside the shell; Step S400 : When the pressure variation trend inside the shell indicates that the pressure increase rate inside the shell 101 remains unchanged or accelerates, a second alarm signal is issued.

[0027] In the embodiment of the present application, the air pressure in the battery housing 101 is detected by the air pressure detection unit 503, so that an effective warning can be issued based on the level and speed of change of the air pressure in the housing 101, so as to remind the rider to detect danger as early as possible, so that the rider can reasonably select risk avoidance measures based on different warning signals, while ensuring their own safety and minimizing property losses. At the same time, the high-pressure airflow in the battery can enter the second hole segment 405 from the bottom end of the second hole segment 405, and the explosion-proof plate 402 slides upward due to the impact of the high-pressure airflow. When the explosion-proof plate 402 is lifted by the airflow to a level higher than the bottom end of the connecting groove 406, the top of the first hole segment 404 is connected to the second hole segment 405 through the connecting groove 406, thereby facilitating the rapid discharge of the high-pressure airflow, avoiding battery explosion, and further reducing the possibility of injury to the rider.

[0028] When the above-mentioned current shell internal pressure data exceeds the first preset pressure threshold, it indicates that the air pressure in the shell 101 is too high. However, there are many reasons for the high air pressure. It may be caused by environmental factors such as abnormally high external temperature, or it may be caused by abnormality of the battery cell 201 itself causing the temperature to rise. Therefore, the first alarm signal can be issued first when the internal air pressure is too high.

[0029] The above-mentioned trend of change in shell pressure can be determined based on the current shell pressure data and the previously acquired historical shell pressure data. Specifically, a curve that can reflect the trend of change in shell pressure data can be obtained by mathematically analyzing multiple data, and then the discrete data points in the curve within the preset trend determination time period at the current moment and before the current moment are differentiated to determine the slope of different discrete points, and then determine whether the pressure change continues to increase at a high speed based on the slope; in the case of a high-speed increase, a second alarm signal needs to be issued in time to remind the rider that the current risk of explosion is higher and the risk needs to be avoided in time.

[0030] The first alarm signal and the second alarm signal may be issued via a display screen and / or an alarm device provided on the two-wheeled vehicle.

[0031] The first alarm signal and the second alarm signal may be issued by the alarm module 506 .

[0032] The alarm module 506 can independently sound an alarm so that the rider can be aware of the risk in advance and avoid dangerous situations.

[0033] The alarm module 506 may directly adopt an audible and visual alarm device, which may be directly electrically connected to the control unit 501 , or may be an audible and visual alarm device with a Bluetooth connection, which may be connected to the control unit 501 via Bluetooth.

[0034] The second alarm signal can be understood as having a higher alarm level than the first alarm signal. That is, the embodiment of the present application employs a hierarchical alarm mechanism, and when a higher-level trigger condition is met, a higher-level alarm can be directly triggered. Furthermore, for different alarm levels, the alarm module 506 can be controlled to perform different alarm measures, such as increasing the flashing speed, displaying different colors, or increasing the frequency of the buzzer sound, to better alert the rider to the current risk of explosion.

[0035] In some embodiments, reference Figures 2 to 4 The cover body 102 further includes a component pressure relief detection unit 502 , which is electrically connected to the control unit 501 and is used to detect the movement state of the explosion-proof plate 402 along the axial direction of the air vent 403 ; The explosion-proof method for two-wheeled vehicle batteries also includes: Determining a first open state of the explosion-proof panel 402 according to a movement state of the explosion-proof panel 402 detected by the component pressure relief detection unit 502; When the first opening state indicates that the explosion-proof panel 402 is opened, a third alarm signal is issued.

[0036] The pressure relief detection unit 502 can directly detect the movement of the explosion-proof panel 402 and quickly determine whether the explosion-proof panel 402 has risen by determining the amplitude of the movement. Furthermore, if the explosion-proof panel 402 has risen, it can quickly determine that the explosion-proof panel 402 has connected the connecting groove 406 with the space inside the housing 101 and release pressure.

[0037] It is understandable that once the pressure begins to release, it indicates that the internal air pressure is already high enough. At this time, the third alarm signal can be issued to remind the rider that the battery has been released. If the third alarm signal disappears after the pressure release, it means that the air pressure is not rising quickly. If the third alarm signal persists after the pressure release, it means that the current air pressure is still rising. The rider should be aware of the risks and take timely avoidance measures.

[0038] It can also be understood that the triggering of the third alarm signal requires the execution of an actual pressure relief action as a triggering condition. It can be seen that the alarm level corresponding to the third alarm signal is higher than the alarm level of the second alarm signal.

[0039] In some embodiments, the two-wheeled vehicle battery explosion prevention method further includes: When the current in-shell air pressure data collected by the air pressure detection unit 503 exceeds the first pressure relief preset pressure threshold, and the first opening state indicates that the explosion-proof plate 402 is not opened, a first pressure relief fault alarm is issued.

[0040] In this embodiment, it is considered that the explosion-proof panel 402 may not be able to be lifted, that is, the explosion-proof panel 402 cannot complete the pressure relief normally. At this time, the pressure in the shell 101 may continue to rise and the risk of explosion will increase. Therefore, timely warning is required to avoid casualties.

[0041] In some embodiments, the component pressure relief detection unit 502 includes: The chip pressure sensor is arranged at the bottom of the first hole section 404 and located between the bottom of the first hole section 404 and the explosion-proof plate 402; the chip pressure sensor is electrically connected to the control unit 501 and is used to detect the pressure between the bottom of the first hole section 404 and the explosion-proof plate 402.

[0042] In this embodiment, a chip-type pressure sensor is used to detect the pressure between the bottom of the first hole section 404 and the explosion-proof plate 402 to determine whether the explosion-proof plate 402 starts to release pressure. The detection method is simple, accurate, and extremely low-cost.

[0043] Specifically, when the explosion-proof plate 402 is not relieving pressure, the explosion-proof plate 402 will squeeze the bottom of the first hole section 404. The chip-type pressure sensor can determine that the explosion-proof plate 402 is not moved by the airflow by detecting this squeezing force; when the explosion-proof plate 402 is relieving pressure, the explosion-proof plate 402 will separate from the bottom of the first hole section 404 and no longer squeeze the bottom of the first hole section 404. At this time, the chip-type pressure sensor cannot detect the squeezing force, thereby determining that the explosion-proof plate 402 has been opened by the airflow and begins to relieve pressure.

[0044] In some embodiments, an isolation plate 301 is horizontally disposed in the battery housing 101 , and the battery cell module 200 is disposed below the isolation plate 301 ; The component pressure relief detection unit 502 includes: The component displacement detection sensor is electrically connected to the control unit 501 , is disposed on the top of the isolation plate 301 , and is directly opposite the explosion-proof plate 402 , for detecting the vertical movement distance of the explosion-proof plate 402 .

[0045] In this embodiment, a component displacement detection sensor is used to directly detect the movement distance of the explosion-proof plate 402 to determine whether the explosion-proof plate 402 starts to release pressure. This detection method is more direct.

[0046] It should be noted that there are many ways to detect whether the explosion-proof plate 402 performs the pressure relief action, and are not limited to the aforementioned solution.

[0047] In addition, in some scenarios, the explosion-proof panel 402 may cause the air pressure inside the battery housing 101 to rise slowly, and may be repeatedly opened and restored. Therefore, if the explosion-proof panel 402 is repeatedly released for pressure within a certain period of time, an alarm is also required to remind the rider to conduct risk inspections in a timely manner.

[0048] The displacement detection sensor of the above-mentioned component can directly adopt an infrared ranging module, a visible light ranging module, an ultrasonic ranging module or other ranging devices that can perform ranging.

[0049] In some embodiments, the two-wheeled vehicle battery explosion prevention method further includes: When the first opening state indicates that the explosion-proof panel 402 is opened, determining the opening interval length between the current opening and the last opening of the explosion-proof panel 402; When the opening interval time exceeds the preset safety interval time, a fourth alarm signal is issued.

[0050] In this embodiment, considering the situation where heat release is relatively slow, such as smoldering, it is possible that after the explosion-proof panel 402 is used to release pressure, the pressure inside the shell detected by the air pressure detection unit 503 is normal. However, due to the presence of smoldering, the pressure inside the shell 101 will rise again. Therefore, by detecting the opening interval length between the two openings of the explosion-proof panel 402, it is possible to determine whether there is a risk of smoldering, etc., so that timely warning can be given so that the rider can conduct timely troubleshooting.

[0051] It should be noted that the alarm level corresponding to the fourth alarm signal is higher than the alarm level corresponding to the third alarm signal.

[0052] In some embodiments, as Figure 3 and Figure 4 As shown, the explosion-proof assembly 400 also includes an elastic member 407, which is connected to the hole wall of the first hole section 404. For example, the elastic member 407 can be integrally formed with the hole wall of the first hole section 404 or welded or connected by screws. The elastic member 407 elastically abuts against the upper end surface of the explosion-proof plate 402.

[0053] In this embodiment, under normal circumstances, the elastic member 407 elastically abuts the upper end surface of the explosion-proof plate 402, allowing the explosion-proof plate 402 to tightly cover the top of the second hole segment 405, achieving a more effective seal. Furthermore, when the battery is installed in the vehicle, the explosion-proof plate 402 is prevented from randomly shaking up and down and generating noise during vehicle operation. When the high-pressure airflow within the battery enters the second hole segment 405 from the bottom end and impacts the explosion-proof plate 402, the elastic member 407 elastically deforms, allowing the explosion-proof plate 402 to slide upward, releasing its cover from the second hole segment 405.

[0054] In some embodiments, as Figure 3 and Figure 4 As shown, the elastic member 407 includes a connecting portion 408 and an elastic sheet 409. The connecting portion 408 is connected to the hole wall of the first hole segment 404. For example, the connecting portion 408 can be integrally formed with the hole wall of the first hole segment 404 or welded or connected by screws. The elastic sheet 409 is connected to the connecting portion 408. For example, the elastic sheet 409 can be integrally formed with the connecting portion 408 or welded. The elastic sheet 409 bends and extends from top to bottom along the axis close to the first hole segment 404. Such a configuration not only improves the elastic abutment effect on the explosion-proof plate 402, thereby improving the sealing performance of the explosion-proof plate 402, but also when the high-pressure airflow in the battery enters the second hole segment 405 from the bottom end of the second hole segment 405 and impacts the explosion-proof plate 402, the elastic sheet 409 is more likely to undergo elastic deformation, thereby making it more convenient to ventilate and having a better explosion-proof effect.

[0055] In some embodiments, as Figure 3 and Figure 4 As shown, multiple elastic members 407 are provided and arranged along the circumference of the first hole section 404, and multiple connecting grooves 406 are provided and arranged along the circumference of the first hole section 404. The provision of multiple elastic members 407 not only improves the elastic abutment effect on the explosion-proof plate 402, but also prevents the explosion-proof plate 402 from flipping over when sliding. The provision of multiple connecting grooves 406 allows for faster ventilation, better ventilation effect, and better explosion-proof effect.

[0056] In some embodiments, as Figure 3 and Figure 4 As shown, the elastic member 407 and the communicating groove 406 are staggered along the circumference of the first hole section 404. This arrangement can prevent the elastic member 407 from affecting the air permeability of the communicating groove 406.

[0057] In some embodiments, as Figure 3 and Figure 4 As shown, the cover body 102 is provided with a mounting hole 108 running through from top to bottom, the mounting seat 401 includes a mounting portion 410 and a stud 414, the mounting portion 410 includes a mounting ring 411 and a convex ring 412, the mounting ring 411 is installed on the upper end of the cover body 102 by fasteners, the mounting ring 411 is formed with a threaded hole 413, the convex ring 412 is provided at the bottom end of the mounting ring 411 and is inserted into the mounting hole 108, the second hole section 405 is provided on the convex ring 412, the aperture of the threaded hole 413 is larger than the aperture of the second hole section 405, the stud 414 is threadedly connected to the threaded hole 413, and the first hole section 404 is provided on the stud 414.

[0058] In this embodiment, during assembly, the convex ring 412 is inserted into the mounting hole 108 of the cover body 102, the mounting ring 411 is connected to the cover body 102 by fasteners, and then the explosion-proof plate 402 is placed in the first hole section 404 of the stud 414, and the stud 414 is threadedly connected to the threaded hole 413 of the mounting ring 411. The assembly is simple and convenient, and it is more convenient to clean, repair and replace.

[0059] In some embodiments, as Figure 3 and Figure 4 As shown, the top of the stud 414 protrudes from the top of the mounting ring 411. This arrangement facilitates the rotation of the stud 414, thereby facilitating the installation and removal of the stud 414.

[0060] In some embodiments, as Figure 3 and Figure 4 As shown, the outer end of the bottom surface of the protruding ring 412 is flush with the bottom surface of the cover body 102, and the bottom surface of the protruding ring 412 extends upward from the outside to the inside. In this way, the bottom surface of the protruding ring 412 can guide the high-pressure gas in the battery, making it easier for the high-pressure gas in the battery to quickly enter the second hole section 405 of the protruding ring 412.

[0061] In some embodiments, as Figure 3 and Figure 4 As shown, a sealing ring 415 is sandwiched between the bottom surface of the mounting ring 411 and the top surface of the cover 102. The provision of the sealing ring 415 can reduce the entry of external water and dust into the battery through the gap between the bottom surface of the mounting ring 411 and the top surface of the cover 102. In some embodiments, as Figure 2 、 Figure 5 and Figure 6 As shown, the cover 102 has a first side 103 and a second side 104 relative to each other, the first side 103 is hinged to one side of the top of the shell 101, the second side 104 is connected to an elastic band 105, the bottom end of the elastic band 105 is detachably connected to the other side of the top of the shell 101, the cover 102 is provided with a side panel 106, the side panel 106 is attached to the outer side of the shell 101, the side panel 106 of the second side 104 is provided with a ventilation groove 107, the side wall of the shell 101 covers the inner side of the ventilation groove 107, or the side wall of the shell 101 is provided with a ventilation groove 107, and the side panel 106 of the second side 104 covers the outer side of the ventilation groove 107; the box 100 also includes a cover pressure relief detection unit 504 electrically connected to the control unit 501, and the cover pressure relief detection unit 504 is used to detect the movement state of the cover 102 in the vertical direction; The explosion-proof method for two-wheeled vehicle batteries also includes: Determining the second open state of the vent groove 107 according to the movement state of the cover 102 detected by the cover pressure relief detection unit 504; When the second opening state indicates that the vent slot 107 is opened, a fifth alarm signal is issued.

[0062] The cover pressure relief detection unit 504 can directly detect the movement of the cover 102, and can then quickly determine whether the cover 102 has risen by determining the extent of the movement, and further determine whether the cover 102 has risen to the point where the vent groove 107 is in communication with the space outside the housing 101. It is understood that when the vent groove 107 is in communication with the space outside the housing 101, the internal space of the housing 101 can be quickly depressurized through the vent groove 107.

[0063] It is understandable that once the pressure is released through the ventilation groove 107, it indicates that the internal air pressure is already extremely high and the explosion-proof component 400 can no longer be used to complete the pressure release. At this time, a fifth alarm signal can be issued to remind the rider that the ventilation groove 107 has performed pressure relief. The rider should be aware of the risks and take avoidance measures immediately.

[0064] It is understandable that the pressure relief capability of the vent groove 107 is much stronger than that of the explosion-proof plate 402 , that is, the triggering condition of the fifth alarm signal is extremely high, and the alarm level corresponding to the fifth alarm signal is higher than the alarm level of the fourth alarm signal.

[0065] In some embodiments, the two-wheeled vehicle battery explosion prevention method further includes: When the current air pressure data inside the shell collected by the air pressure detection unit 503 exceeds the second pressure relief preset pressure threshold and the second opening state indicates that the vent slot 107 is not open, a second pressure relief fault alarm is issued.

[0066] In this embodiment, considering that the cover body 102 may not be able to be lifted, that is, the vent groove 107 cannot complete the pressure relief normally, the pressure in the shell 101 may continue to rise, and the risk of explosion is extremely high. Therefore, timely warning is required to avoid casualties.

[0067] In some embodiments, reference Figure 4 In the case where the side wall of the housing 101 is provided with a ventilation groove 107 and the side plate 106 of the second side 104 covers the outside of the ventilation groove 107, the cover pressure relief detection unit 504 includes: The infrared detection sensor is arranged on the side wall of the shell 101 and opposite the ventilation groove 107. The infrared detection sensor is electrically connected to the control unit 501. A reflecting part is provided on the side panel 106 of the second side 104, and the reflecting part is used to reflect the infrared detection light emitted by the infrared detection sensor.

[0068] In this embodiment, considering the scenario where the air groove 107 is set on the side wall of the shell 101, at this time, the side plate 106 of the second side 104 covers the outer side of the air groove 107, and then the infrared detection sensor can be directly used to determine whether the air groove 107 can reflect infrared detection light to determine whether the air groove 107 is depressurized. The judgment is convenient and low-cost.

[0069] Specifically, when the ventilation slot 107 is covered, the infrared detection light can be reflected by the side plate 106 and returned to the receiving module of the infrared detection sensor. When the ventilation slot 107 is not covered, the infrared detection light cannot be reflected by the side plate 106 to the receiving module of the infrared sensor.

[0070] The reflective portion can increase the intensity of reflection and can be a reflective coating or a reflective sheet.

[0071] It should be noted that the infrared detection sensor can also be directly replaced by an infrared ranging module, a visible light ranging module or other ranging device that can perform single-point ranging, so that it can be determined whether the ventilation groove 107 is depressurized by directly detecting the change in distance.

[0072] Specifically, when the vent slot 107 is covered, the distance detected by the distance measuring device will be smaller than the distance when the vent slot 107 is not covered. By detecting the distance, it is directly determined whether the vent slot 107 has been depressurized.

[0073] In some embodiments, the infrared detection sensor emits infrared detection light and is arranged facing the bottom of the ventilation groove 107 .

[0074] In this embodiment, considering that the air permeable groove 107 will not be completely leaked every time, the infrared detection light is chosen to be irradiated toward the bottom of the air permeable groove 107, so that when a small amount of air pressure is released in the air permeable groove 107, the pressure release can be effectively detected to avoid missed detection or wrong detection.

[0075] In some embodiments, an isolation plate 301 is horizontally disposed in the housing 101 , and the battery cell module 200 is disposed below the isolation plate 301 ; The cover pressure relief detection unit 504 includes: The cover displacement detection sensor is disposed on the top of the isolation plate 301 and is directly opposite to the cover 102 , and is used to detect the vertical movement distance of the cover 102 .

[0076] The isolation plate 301 can divide the housing 101 into two spaces, separating the space where the battery module 200 is located from the space where the electronic control components are arranged, thereby improving safety in use.

[0077] The lid displacement detection sensor can directly utilize a distance-measuring device such as an infrared distance measurement module, a visible light distance measurement module, or an ultrasonic distance measurement module. This allows the lid 102 to be opened by directly detecting changes in the distance between the lid 102 and the isolation plate 301. Furthermore, the vertical distance that the lid 102 must move to release pressure in the vent groove 107 can be predetermined. Based on this, effective pressure release can be determined by determining the distance the lid 102 has moved.

[0078] In some embodiments, a temperature sensor 505 electrically connected to the control unit 501 is further provided in the housing 101 , and the temperature sensor 505 is used to detect the temperature in the housing 101 ; The explosion-proof method for two-wheeled vehicle batteries also includes: Acquire the shell temperature data collected by the temperature sensor 505; When the temperature data inside the shell exceeds the first preset temperature threshold, a sixth alarm signal is issued.

[0079] In this embodiment, in many scenarios, temperature changes will precede air pressure changes, especially when only individual battery cells 201 fail and are smoldering, the air pressure will not usually rise quickly, but by using the temperature sensor 505 to detect the temperature inside the shell 101, overheating can be detected in advance, and then an early warning can be issued, so that in some scenarios, only some battery cells 201 can be maintained without directly replacing the battery, that is, while achieving explosion-proof early warning, the use cost is effectively reduced.

[0080] In addition, it should be noted that the alarm of abnormal temperature may usually cause a rapid chain reaction, that is, the fire will spread rapidly, and once a fire occurs, the air pressure will rise rapidly. Therefore, in order to prevent the danger from expanding, when the temperature data inside the shell is detected to exceed the first preset temperature threshold, the sixth alarm signal will be issued in time.

[0081] In this embodiment, considering that the fire risk is a major safety risk that can be directly foreseen, the alarm level corresponding to the sixth alarm signal is set to be higher than the alarm level of the fifth alarm signal.

[0082] In some embodiments, reference Figure 3 Two elastic bands 105 are provided, one on each side of the ventilation groove 107. Specifically, the ventilation groove 107 can be provided on the side panel 106 of the second side 104 and extend along the length of the side panel 106 of the second side 104. Two elastic bands 105 are provided, one on each side of the ventilation groove 107. In this embodiment, this arrangement not only increases the area of ​​the ventilation groove 107 and improves ventilation, but also makes the connection between the cover 102 and the housing 101 more stable.

[0083] In some embodiments, a flame retardant module 300 is further provided in the housing 101. The flame retardant module 300 includes an isolation plate 301 and a hot aerosol fire extinguisher 302. The isolation plate 301 is provided in the housing 101 and covers the top of the battery cell module 200. The isolation plate 301 is provided with a diversion channel 303. The bottom end of the diversion channel 303 is provided with a discharge port 304 facing the battery cell module 200. The hot aerosol fire extinguisher 302 is provided in the housing 101 and communicates with the diversion channel 303. The hot aerosol fire extinguisher 302 is electrically connected to the control unit 501. The explosion-proof method for two-wheeled vehicle batteries also includes: When the temperature data inside the shell exceeds the second preset temperature threshold, the thermal aerosol fire extinguisher 302 is activated and a seventh alarm signal is issued.

[0084] In this embodiment, the temperature inside the housing 101 can be detected by the temperature sensor 505. When the battery cell module 200 in the battery short-circuits and generates high temperature, the control unit 501, after receiving the temperature information detected by the temperature sensor 505, can activate the hot aerosol fire extinguisher 302 to generate a large amount of aerosol. The aerosol is transported into the guide channel 303 and then ejected through the discharge port 304 to extinguish the fire, thereby effectively achieving flame retardancy and explosion prevention. In addition, due to the provision of the isolation plate 301, the isolation plate 301 covers the top of the battery cell module 200, and the discharge port 304 faces the battery cell module 200. The aerosol ejected from the discharge port 304 will be concentrated on the battery cell module 200, and will not splash around randomly, thereby achieving concentrated flame retardancy on the battery cell module 200, with better flame retardancy and explosion prevention effects, and can also reduce the aerosol splashing onto other components in the battery and affecting other components.

[0085] It should be noted that, considering that activating the hot aerosol fire extinguisher 302 is an active explosion-proof method and the last explosion-proof means, once the hot aerosol fire extinguisher 302 is activated, it is necessary to promptly issue the seventh alarm signal to inform the rider to stop riding immediately and stay away from the electric two-wheeled vehicle.

[0086] The hot aerosol fire extinguisher 302 can input aerosol into the diversion channel 303 after being activated.

[0087] The temperature sensor 505 can be installed within the housing 100, below the isolation plate 301, to directly and effectively detect the temperature of the battery cell 201, allowing the control unit 501 to activate the thermal aerosol fire extinguisher 302 and extinguish the fire as soon as possible. The temperature sensor 505 can also be attached directly to the battery module 200, or even closer to the battery module 200, which can also effectively improve the effectiveness of temperature detection of the battery module 200.

[0088] In some embodiments, reference Figure 6 、 Figure 10 The hot aerosol fire extinguisher 302 is located at the top of the isolation plate 301.

[0089] In this embodiment, compared to a thermal aerosol fire extinguisher 302 positioned below the isolation plate 301, this arrangement allows the isolation plate 301 to be closer to the cell module 200, thereby providing better coverage of the cell module 200. Furthermore, the discharge port 304 can be placed closer to the cell module 200, allowing the ejected aerosol to provide a more concentrated flame retardant treatment to the cell module 200, thus improving practicality. Furthermore, installing the isolation plate 301 facilitates installation of the thermal aerosol fire extinguisher 302.

[0090] In some embodiments, reference Figure 10 The isolation plate 301 is provided with a heat conduction hole 305 running through it from top to bottom. The hot aerosol fire extinguisher 302 is located above the heat conduction hole 305 and covers the heat conduction hole 305. The control unit 501 and a temperature sensor 505 are integrated in the flame retardant module 300. The temperature sensor 505 is arranged at the bottom end of the hot aerosol fire extinguisher 302.

[0091] The thermal hole 305 can be located near the middle of the isolation plate 301 , with the bottom of the thermal hole 305 close to the battery module 200 , so that the temperature sensor 505 located at the bottom of the thermal aerosol fire extinguisher 302 can better detect the temperature.

[0092] In this embodiment, it is configured so that when a short circuit occurs in the battery module 200 and high temperature is generated, the heat can be quickly transferred to the temperature sensor 505 at the bottom of the hot aerosol fire extinguisher 302 through the heat conduction hole 305. When the temperature sensor 505 senses that the temperature is higher than the preset value, the control unit 501 can quickly activate the hot aerosol fire extinguisher 302 to generate aerosol, which is more flame retardant and has better flame retardant and explosion-proof effects.

[0093] It should be noted that the method of integrating the temperature sensor 505 into the thermal aerosol fire extinguisher 302 and the method of independently arranging the temperature sensor 505 each have advantages and disadvantages, and the specific choice can be flexibly made according to actual needs.

[0094] In some embodiments, there are multiple temperature sensors 505 , and the multiple temperature sensors 505 are disposed in different areas within the box 100 .

[0095] In this embodiment, considering that the battery cell module 200 is composed of multiple battery cells 201, multiple temperature sensors 505 are selected to detect different areas of the battery cell module 200, thereby effectively preventing missed detection or detection delays, and being able to detect temperature abnormalities as soon as possible when a dangerous situation occurs, thereby timely activating the thermal aerosol fire extinguisher 302.

[0096] In some embodiments, the plurality of temperature sensors 505 are all located below the isolation plate 301 .

[0097] In this embodiment, considering that the battery cell module 200 is mainly disposed below the isolation plate 301 , multiple temperature sensors 505 are arranged below the isolation plate 301 , which can improve the accuracy of detection.

[0098] In some embodiments, the two-wheeled vehicle battery explosion prevention method further includes: When the temperature data inside the housing exceeds a second preset temperature threshold, the electric vehicle is controlled to stop moving.

[0099] In this embodiment, taking into account the possibility that the rider may not be able to accurately obtain the alarm information during high-speed riding, in order to avoid casualties, the electric vehicle is controlled to stop driving when the seventh alarm signal is triggered so that the rider can quickly discover the serious risk of explosion.

[0100] In some embodiments, reference Figure 6 、 Figure 10 The top of the isolation plate 301 is connected to a guide pipe 306 , and the guide pipe 306 and the isolation plate 301 are enclosed to form a guide channel 303 , and the discharge port 304 is provided on the isolation plate 301 .

[0101] The bottom end of the guide tube 306 can be opened and enclosed with the isolation plate 301 to form a guide channel 303. The discharge port 304 is set on the isolation plate 301 and passes through it from top to bottom. In this way, the processing is simpler and more convenient.

[0102] It should be noted that a connecting channel 307 may be provided between the guide channel 303 and the discharge end of the thermal aerosol fire extinguisher 302. In addition, in some embodiments, the guide channel 303 may be directly opened in the isolation plate 301.

[0103] In some embodiments, reference Figure 7 The battery cell module 200 includes a plurality of battery cells 201 , which are arranged along a first horizontal direction. The guide channel 303 extends along the first horizontal direction, and the guide channel 303 is provided with a plurality of discharge ports 304 along its length direction.

[0104] In this embodiment, the flow guide channel 303 extends along a first horizontal direction, that is, along the arrangement direction of the multiple battery cells 201. The flow guide channel 303 is provided with multiple discharge ports 304 along its length. In this way, the aerosol ejected from the multiple discharge ports 304 can be sprayed into the multiple battery cells 201 and between multiple groups of adjacent battery cells 201, thereby achieving more comprehensive flame retardancy and better flame retardant and explosion-proof effects.

[0105] In some embodiments, as Figures 6 to 10 As shown, a pole ear 202 assembly is provided between two adjacent battery cells 201, and the pole ear 202 assembly includes two fitted pole ears 202, and the two pole ears 202 are respectively connected to two adjacent battery cells 201, and among the three adjacent battery cells 201, the two pole ear 202 assemblies connected to the middle battery cell 201 are arranged along the second horizontal direction, and the second horizontal direction is perpendicular to the first horizontal direction. Two guide channels 303 are provided and arranged along the second horizontal direction.

[0106] In this embodiment, the two guide channels 303 can be respectively located above the two pole tabs 202 components connected to the battery cell 201. In this way, the aerosol sprayed from the multiple discharge ports 304 can be sprayed more concentratedly and accurately onto the multiple pole tabs 202 components, and enter between multiple groups of adjacent two battery cells 201 from the multiple pole tabs 202 components, thereby making the flame retardancy more comprehensive and the flame retardant and explosion-proof effects better.

[0107] In some embodiments, the discharge ports 304 correspond to the tabs 202 assemblies one by one, and the discharge ports 304 face the corresponding tabs 202 assemblies. In this way, the aerosol ejected from the multiple discharge ports 304 can be more concentratedly and accurately sprayed onto the multiple tabs 202 assemblies, and enter between multiple adjacent battery cells 201 from the multiple tabs 202 assemblies, thereby achieving more comprehensive flame retardancy and better flame retardancy and explosion-proof effects.

[0108] In some embodiments, as Figures 6 to 10 As shown, the battery cell module 200 further includes a plurality of clamping structures 203 , the clamping structure 203 includes two clips 204 , the two clips 204 are respectively attached to the opposite sides of the two tabs 202 of the tab 202 assembly, and a fastener is installed between the two clips 204 .

[0109] In the prior art, the tabs 202 are connected by welding, which is not only cumbersome, time-consuming and labor-intensive, but also prone to problems such as loose welding or melt-through. In addition, the generated welding slag can easily pierce the external aluminum-plastic film, resulting in poor battery quality.

[0110] In this embodiment, when two adjacent cells 201 of the cell module 200 need to be connected in series, the two tabs 202 of the tab 202 assembly are aligned, and then the two clips 204 of the clamping structure 203 are respectively aligned on the opposite sides of the two tabs 202 of the tab 202 assembly, and the two clips 204 are connected by fasteners. The two clips 204 can then cooperate to clamp the two tabs 202 of the tab 202 assembly, thereby keeping the two tabs 202 of the tab 202 assembly in a conductive state of mutual alignment. This not only makes the connection of the tabs 202 more convenient, more time-saving and labor-saving, but also more secure. In addition, there is no possibility of welding slag piercing the aluminum-plastic film, and the battery quality is improved.

[0111] It should be noted that the fasteners may be blind rivets, which have a stable connection and are easy to install. Of course, the fasteners may also be other structures, such as bolts, which will not be described in detail here.

[0112] In some embodiments, as Figure 7 As shown, the battery module 200 further includes a mounting plate 205 , the battery cell 201 is located below the mounting plate 205 , the clamping structure 203 is located above the mounting plate 205 , the mounting plate 205 is provided with a plurality of clearance grooves 206 , and the tabs 202 are inserted into the clearance grooves 206 .

[0113] In this embodiment, the mounting plate 205 separates the tab 202 assembly from the battery cell 201, reducing the risk of short circuits and improving safety. Furthermore, the provision of a clearance groove 206 facilitates the entry of aerosols between two adjacent battery cells 201, thereby improving flame retardancy and explosion protection.

[0114] In some embodiments, two heat dissipation components are further provided in the box body, and both heat dissipation components are provided in the box body 100 and are respectively located on opposite sides of the battery cell module 200; each heat dissipation component includes a mounting frame and a plurality of thermally conductive elastic members, the mounting frame is installed in the box body 100 and extends along the arrangement direction of the plurality of battery cells 201, and the plurality of thermally conductive elastic members are provided on the mounting frame and arranged along the extension direction of the mounting frame, and the thermally conductive elastic members are respectively provided with a first abutting portion and a second abutting portion on both sides of the extension direction of the mounting frame, and the first abutting portion and the second abutting portion of the same thermally conductive elastic member are bent and extended downward or upward in a direction away from each other, and the plurality of first abutting portions are respectively used to abut the width direction sides of the plurality of battery cells 201, and the plurality of second abutting portions are used to abut the inner wall of the box body 100; the control unit 501 is also connected to a stress detection unit, which is provided on the surface of any thermally conductive elastic member for detecting the stress of the thermally conductive elastic member.

[0115] In the present application, because the thermally conductive elastic member is separately provided and elastic, the first and second abutting portions bend and extend in opposite directions, allowing for significant elastic deformation along the width of the battery cell 201. This allows the two abutting portions to remain in close contact with the side of the battery cell 201 and the inner wall of the housing 100, even if one side of the battery cell 201 is misaligned. This improves thermal conductivity and enhances the heat dissipation of the battery. Furthermore, the thermally conductive elastic member provides elastic cushioning, preventing damage to the battery cell module 200 due to excessive impact forces when the side wall of the housing 100 is impacted. Furthermore, a stress detection unit can be used to detect stress changes in the thermally conductive elastic member, which can then be used to determine the aging status of the thermally conductive elastic member. This allows the rider to be promptly reminded to replace the thermally conductive elastic member when the thermally conductive elastic member ages, thereby continuously providing improved heat dissipation and collision protection.

[0116] The thermally conductive elastic member may be made of thermally conductive rubber, thermally conductive silicone or other suitable thermally conductive elastic materials.

[0117] The above-mentioned stress detection unit can detect the stress on the surface of the elastic heat-conducting part. In actual operation, in order to better determine whether the stress has changed, the stress can be detected when the electric two-wheeled vehicle is in a stationary state, thereby avoiding the influence of factors such as bumps during the movement of the electric two-wheeled vehicle on the stress detection results. It is understandable that for similar materials such as thermally conductive rubber, when aging occurs, the stress in the same area will increase or decrease more. By judging whether the stress change value exceeds the preset threshold, it can be determined whether a stress abnormality has occurred.

[0118] In some embodiments, the stress detection unit includes a stress detection sheet electrically connected to the control unit 501 .

[0119] In this embodiment, a stress detection sheet is used as the stress detection unit. Some products of the stress detection sheet are inexpensive, and the inexpensive products are sufficient to meet the needs of stress detection and are suitable for industrial promotion.

[0120] The stress detection piece mentioned above may be a resistive stress detection piece, or other types of detection pieces may be selected according to actual needs.

[0121] The above stress detection unit can be selected from other types of stress detection products according to actual needs.

[0122] In some embodiments, there are multiple stress detection units, and the multiple stress detection units are respectively disposed on different thermally conductive elastic members.

[0123] In this embodiment, by providing multiple stress detection units, stress detection can be performed on different thermally conductive elastic members, avoiding the risk of missed detection caused by a single stress detection unit. It is understood that when multiple stress detection units are present, if any stress detection unit detects a stress anomaly, an alarm should be issued through the alarm module.

[0124] It should also be noted that the temperature sensor 505, by detecting the temperature within the housing 100, can better utilize the stress detection unit to complete stress detection judgment. Specifically, temperature also affects the product's stress. If the judgment is based solely on the stress detection results when the electric two-wheeled vehicle is stationary, it is easy for the temperature of the thermally conductive elastic component to vary due to different temperatures, resulting in detection errors. Therefore, in addition to the stationary condition, the restriction condition of the temperature being the same or within the allowable deviation range can be added to determine the stress deviation, thereby further improving the accuracy of the stress-based judgment of the degree of aging of the thermally conductive elastic component.

[0125] In some embodiments, in order to better utilize stress detection to complete the judgment of the degree of aging of the thermally conductive elastic part, the standard stress values ​​of the thermally conductive elastic part when the electric vehicle is in a stationary state and in different temperature sections will be detected in advance. At this time, it is not necessary to perform stress detection to judge aging when the electric two-wheeled vehicle is parked for a long time. Instead, after the vehicle stops, the standard stress value of the corresponding temperature section can be quickly determined based on the current temperature of the thermally conductive elastic part, and then the stress difference can be determined using the currently detected stress value.

[0126] In some embodiments, at least one temperature sensor 505 is disposed near the thermally conductive elastic member to improve the accuracy of detecting the aging degree of the thermally conductive elastic member.

[0127] In some embodiments, a slot is provided on the outer side of the first abutting portion, and the slot is inserted into the side edge of the power core 201 in the width direction.

[0128] The first abutting portion can be plugged into the side of the battery cell 201 in the width direction through a slot, so that the contact between the battery cell 201 and the thermally conductive elastic member is closer, the contact area is larger, the thermal conductivity is better, and thus the heat dissipation effect of the battery is better.

[0129] In some embodiments, the bottom end of the slot is provided through, which makes it easier for the side of the battery cell 201 in the width direction to be inserted into the slot.

[0130] In some embodiments, the mounting bracket includes: Two mounting bases, respectively used to connect two opposite side walls of the box body 100; The two ends of the mounting rod are respectively connected to the two mounting seats. The heat-conducting elastic member is provided with a sleeve hole and is slidably sleeved on the mounting rod through the sleeve hole.

[0131] In this embodiment, the thermally conductive elastic member is provided with a sleeve hole and can be slidably mounted on the mounting rod through the sleeve hole. In this way, the position of the thermally conductive elastic member can be appropriately adjusted according to the distance between two adjacent battery cells 201, so that the position of the thermally conductive elastic member and the corresponding battery cell 201 is more adapted, thereby making the abutment and insertion effect of the thermally conductive elastic member and the corresponding battery cell 201 better, the contact between the battery cell 201 and the thermally conductive elastic member closer, the heat conduction effect is better, and thus the heat dissipation effect of the battery is better.

[0132] In some embodiments, the mounting base includes a first plate and a second plate. The first plate can be set vertically and is used to be attached to the side wall of the box body 100. The second plate can be connected to the top of the first plate. The second plate is provided with a first waist-shaped hole. The first waist-shaped hole extends along the length direction of the mounting rod. Connecting plates are respectively provided at both ends of the mounting rod. The connecting plates are attached to the top surface of the second plate, and a first fastener is installed between the connecting plate and the second plate. The first fastener is passed through the first waist-shaped hole.

[0133] In this embodiment, the mounting seat is provided with a first plate to facilitate connection with the side wall of the box body 100, the mounting seat is provided with a second plate, the second plate is provided with a first waist-shaped hole, and the mounting rod is provided with a connecting plate to facilitate connection of the mounting rod and the mounting seat through the first fastener, and the first waist-shaped hole extends along the length direction of the mounting rod, so that the mounting rod can be properly adjusted along its own length direction, so that the position of the thermally conductive elastic member and the corresponding battery cell 201 can be more adapted, and the abutment and insertion effect of the thermally conductive elastic member and the corresponding battery cell 201 can be better, so that the contact between the battery cell 201 and the thermally conductive elastic member is closer, the thermal conductivity effect is better, and thus the heat dissipation effect of the battery is better.

[0134] In some embodiments, the first plate is provided with a second waist-shaped hole, the second waist-shaped hole extends in a horizontal direction, and the extension direction of the second waist-shaped hole is perpendicular to the extension direction of the first waist-shaped hole. The first plate is connected to the side wall of the box body 100 through a second fastener, and the second waist-shaped hole is for the second fastener to pass through.

[0135] In this embodiment, a second waist-shaped hole is provided on the first plate to facilitate connection between the first plate and the side wall of the box body 100 through a second fastener, and the second waist-shaped hole extends in a horizontal direction, and the extension direction of the second waist-shaped hole is perpendicular to the extension direction of the first waist-shaped hole. In this way, the position of the heat dissipation component can be appropriately adjusted along the width direction of the battery cell 201, so that the first abutting portion of the thermally conductive elastic member can abut the corresponding battery cell 201 more appropriately, and the second abutting portion of the thermally conductive elastic member can abut the side wall of the box body 100 more appropriately, thereby making the heat conduction effect better, thereby making the heat dissipation effect of the battery better.

[0136] In some embodiments, the thermally conductive elastic member and the mounting rod are relatively fixed along the circumference of the mounting rod. For example, the cross section of the mounting rod in the longitudinal direction may be polygonal, and the sleeve hole may be a polygonal hole.

[0137] In this way, the thermally conductive elastic member can be prevented from rotating arbitrarily relative to the mounting rod, thereby reducing the abutment effect between the first abutment portion and the battery cell 201 and the abutment effect between the second abutment portion and the side wall of the box body 100, thereby improving the thermal conductivity and thus improving the heat dissipation effect of the battery.

[0138] In some embodiments, the mounting rod includes two rod units, the adjacent ends of the two rod units being plugged into each other. When the two rod units are separated, the thermally conductive elastic member can be removed from the adjacent ends of the two rod units. For example, one of the adjacent ends of the two rod units may have a socket, and the other may have an insert, which is inserted into the socket.

[0139] When the thermal conductive elastic part needs to be cleaned, repaired, replaced or the quantity needs to be increased or decreased, the two rod units are separated from each other, and then the thermal conductive elastic part can be removed from the end where the two rod units are close to each other, thereby facilitating the cleaning, repair, replacement or increase or decrease of the thermal conductive elastic part, and being more practical.

[0140] The two-wheeled vehicle battery explosion-proof method provided in the embodiment of the present application can be performed by a two-wheeled vehicle battery explosion-proof device. In the embodiment of the present application, the two-wheeled vehicle battery explosion-proof device is used as an example to illustrate the two-wheeled vehicle battery explosion-proof method provided in the embodiment of the present application.

[0141] The present application also provides a two-wheeled vehicle battery explosion-proof device, comprising: An air pressure acquisition module, used to obtain the current air pressure data inside the shell collected by the air pressure detection unit 503; A first alarm module 506 is configured to issue a first alarm signal when the current air pressure data inside the shell is higher than or equal to a first preset air pressure threshold; an air pressure trend determination module, configured to determine a pressure change trend of the shell according to the current shell pressure data and pre-acquired historical shell pressure data when the current shell pressure data is higher than or equal to a first preset pressure threshold; The second alarm module 506 is configured to issue a second alarm signal when the pressure variation trend inside the shell indicates that the pressure increase rate inside the shell 101 remains unchanged or accelerates.

[0142] The two-wheeled vehicle battery explosion-proof device in the embodiments of the present application can be an electronic device or a component of an electronic device, such as an integrated circuit or chip. The electronic device can be a terminal or other device other than a terminal. For example, the electronic device can be a mobile phone, a tablet computer, a laptop computer, a PDA, an in-vehicle electronic device, a mobile internet device, an augmented reality (AR) / virtual reality (VR) device, a robot, a wearable device, a super mobile personal computer, a netbook, or a personal digital assistant, etc. It can also be a server, a network attached storage, a personal computer, a television, a teller machine, or a self-service machine, etc., and the embodiments of the present application do not specifically limit this.

[0143] The present application also provides an electronic device comprising: a processor and a memory storing computer program instructions; when the processor executes the computer program instructions, it implements the above-described two-wheeled vehicle battery explosion-proofing method. The source meter provided in this embodiment of the present application can implement each process implemented in the above-described two-wheeled vehicle battery explosion-proofing method embodiment and achieve the same beneficial effects. To avoid repetition, the details are not repeated here.

[0144] An embodiment of the present application further provides a computer-readable storage medium storing computer-executable instructions. The computer-executable instructions are executed by a processor or a control module, enabling the processor to execute the two-wheeled vehicle battery explosion-proof method in the above embodiment, for example, the method described above.

[0145] It should be understood that the present application is not limited to the specific configurations and processes described above and illustrated in the figures. For the sake of brevity, a detailed description of known methods is omitted here. In the above embodiments, several specific steps are described and illustrated as examples. However, the method process of the present application is not limited to the specific steps described and illustrated. Those skilled in the art can make various changes, modifications, and additions, or change the order of the steps after understanding the spirit of the present application.

[0146] The functional blocks shown in the above block diagram can be implemented as hardware, software, firmware or a combination thereof. When implemented in hardware, they can be, for example, electronic circuits, application specific integrated circuits, appropriate firmware, plug-ins, function cards, etc. When implemented in software, the elements of the present application are programs or code segments that are used to perform the required tasks. The program or code segment can be stored in a machine-readable medium, or transmitted on a transmission medium or a communication link by a data signal carried in a carrier wave. "Machine-readable medium" can include any medium that can store or transmit information. Examples of machine-readable media include electronic circuits, semiconductor memory devices, ROM, flash memory, erasable ROM, floppy disks, CD-ROMs, optical disks, hard disks, optical fiber media, radio frequency links, etc. The code segment can be downloaded via a computer network such as the Internet, an intranet, etc.

[0147] It should also be noted that the exemplary embodiments mentioned in this application describe some methods or systems based on a series of steps or devices. However, this application is not limited to the order of the above steps. In other words, the steps can be performed in the order mentioned in the embodiments, or in a different order, or several steps can be performed simultaneously.

[0148] Aspects of the present disclosure have been described above with reference to the flowcharts and / or block diagrams of the methods, devices, and computer program products according to the embodiments of the present disclosure. It should be understood that each box in the flowchart and / or block diagram and the combination of each box in the flowchart and / or block diagram can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device to produce a machine so that these instructions executed by the processor of the computer or other programmable data processing device enable the implementation of the function / action specified in one or more boxes of the flowchart and / or block diagram. Such a processor can be a general-purpose processor, a special-purpose processor, a special application processor, or a field programmable logic circuit. It is also understood that each box in the block diagram and / or flowchart and the combination of the boxes in the block diagram and / or flowchart can also be implemented by dedicated hardware that performs the specified function or action, or can be implemented by a combination of dedicated hardware and computer instructions.

[0149] The above is only a specific implementation method of the present application. Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, modules and units described above can refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here. It should be understood that the scope of protection of the present application is not limited to this. Any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope disclosed in this application, and these modifications or replacements should be included in the scope of protection of the present application.

Claims

1. A two-wheeled vehicle battery explosion-proof method, characterized in that: The battery includes a box body and a battery cell module, an air pressure detection unit, and a control unit arranged in the box body, the air pressure detection unit being electrically connected to the control unit; the box body includes a shell and a cover body, the cover body is provided with an explosion-proof component, the explosion-proof component includes a mounting seat and an explosion-proof plate, the mounting seat is installed on the cover body, the mounting seat is provided with an air vent running through the upper and lower parts, the air vent includes a first hole segment and a second hole segment, the second hole segment is located below the first hole segment, the aperture of the second hole segment is smaller than the aperture of the first hole segment, the hole wall of the first hole segment is provided with a connecting groove, the connecting groove extends vertically, the explosion-proof plate is slidably installed in the first hole segment and covers the top end of the second hole segment; wherein, when the explosion-proof plate can be lifted by the airflow in the battery shell to a level higher than the bottom end of the connecting groove, the top end of the first hole segment is connected to the second hole segment through the connecting groove; the air pressure detection unit is used to detect the air pressure in the shell; The two-wheeled vehicle battery explosion-proof method comprises: Acquiring current in-shell air pressure data collected by the air pressure detection unit; When the current air pressure data inside the shell is higher than or equal to a first preset air pressure threshold, a first alarm signal is issued; When the current air pressure data inside the shell is higher than or equal to a first preset air pressure threshold, determining a change trend of the air pressure inside the shell according to the current air pressure data inside the shell and pre-acquired historical air pressure data inside the shell; When the pressure change trend in the shell indicates that the pressure increase rate in the shell remains unchanged or accelerates, a second alarm signal is issued.

2. The two-wheeled vehicle battery explosion-proof method according to claim 1, characterized in that: The cover body further includes a component pressure relief detection unit, which is electrically connected to the control unit and is used to detect the movement state of the explosion-proof plate along the axial direction of the air vent; The two-wheeled vehicle battery explosion-proof method further includes: determining a first opening state of the explosion-proof plate according to a movement state of the explosion-proof plate detected by the component pressure relief detection unit; When the first opening state indicates that the explosion-proof panel is opened, a third alarm signal is issued.

3. The explosion-proof method for two-wheeled vehicle batteries according to claim 2, characterized in that: The two-wheeled vehicle battery explosion-proof method further includes: When the first opening state indicates that the explosion-proof plate is opened, determining the opening interval duration between the current opening and the last opening of the explosion-proof plate; When the opening interval duration exceeds the preset safety interval duration, a fourth alarm signal is issued.

4. The explosion-proof method for two-wheeled vehicle batteries according to claim 3, characterized in that: The cover body has a first side and a second side opposite to each other, the first side being hinged to one side of the top end of the shell, the second side being connected to an elastic band, the bottom end of the elastic band being detachably connected to the other side of the top end of the shell, the cover body being provided with a side panel, the side panel being attached to the outer side surface of the shell; the side panel of the second side being provided with a ventilation groove, the side wall of the shell covering the inner side of the ventilation groove, or the side wall of the shell being provided with a ventilation groove, the side panel of the second side covering the outer side of the ventilation groove; the box body further comprises a cover body pressure relief detection unit electrically connected to the control unit, the cover body pressure relief detection unit being used to detect the movement state of the cover body in the vertical direction; The two-wheeled vehicle battery explosion-proof method further includes: determining a second opening state of the vent groove according to a movement state of the cover body detected by the cover body pressure relief detection unit; When the second opening state indicates that the ventilation slot is opened, a fifth alarm signal is issued.

5. The explosion-proof method for two-wheeled vehicle batteries according to claim 4, characterized in that: A temperature sensor electrically connected to the control unit is further provided in the housing, and the temperature sensor is used to detect the temperature in the housing; The two-wheeled vehicle battery explosion-proof method further includes: Acquiring the shell temperature data collected by the temperature sensor; When the temperature data inside the shell exceeds the first preset temperature threshold, a sixth alarm signal is issued.

6. The explosion-proof method for two-wheeled vehicle batteries according to claim 5, characterized in that: The shell is further provided with a flame retardant module, which includes an isolation plate and a hot aerosol fire extinguisher. The isolation plate is provided in the shell and covers the top of the battery module. The isolation plate is provided with a guide channel. The bottom end of the guide channel is provided with a discharge port facing the battery module. The hot aerosol fire extinguisher is provided in the shell and communicates with the guide channel. The hot aerosol fire extinguisher is electrically connected to the control unit. The two-wheeled vehicle battery explosion-proof method further includes: When the temperature data inside the shell exceeds a second preset temperature threshold, the thermal aerosol fire extinguisher is activated and a seventh alarm signal is issued.

7. The explosion-proof method for two-wheeled vehicle batteries according to claim 6, characterized in that: The two-wheeled vehicle battery explosion-proof method further includes: When the temperature data inside the housing exceeds a second preset temperature threshold, the electric vehicle is controlled to stop moving.

8. A two-wheeled vehicle battery explosion-proof device, characterized in that: The battery includes a box body and a battery cell module, an air pressure detection unit, and a control unit arranged in the box body, the air pressure detection unit being electrically connected to the control unit; the box body includes a shell and a cover body, the cover body is provided with an explosion-proof component, the explosion-proof component includes a mounting seat and an explosion-proof plate, the mounting seat is installed on the cover body, the mounting seat is provided with an air vent running through the upper and lower parts, the air vent includes a first hole segment and a second hole segment, the second hole segment is located below the first hole segment, the aperture of the second hole segment is smaller than the aperture of the first hole segment, the hole wall of the first hole segment is provided with a connecting groove, the connecting groove extends vertically, the explosion-proof plate is slidably installed in the first hole segment and covers the top end of the second hole segment; wherein, when the explosion-proof plate can be lifted by the airflow in the battery shell to a level higher than the bottom end of the connecting groove, the top end of the first hole segment is connected to the second hole segment through the connecting groove; the air pressure detection unit is used to detect the air pressure in the shell; The two-wheeled vehicle battery explosion-proof device comprises: An air pressure acquisition module, used to obtain the current air pressure data inside the shell collected by the air pressure detection unit; a first alarm module, configured to issue a first alarm signal when the current air pressure data inside the shell is higher than or equal to a first preset air pressure threshold; an air pressure trend determining module, configured to determine a pressure change trend of the shell according to the current shell pressure data and pre-acquired historical shell pressure data when the current shell pressure data is higher than or equal to a first preset pressure threshold; The second alarm module is configured to send out a second alarm signal when the pressure change trend in the shell indicates that the pressure increase rate in the shell remains unchanged or accelerates.

9. An electronic device, characterized in that: The electronic device includes a processor and a memory storing computer program instructions; When the processor executes the computer program, the two-wheeled vehicle battery explosion prevention method according to any one of claims 1 to 7 is implemented.

10. A computer-readable storage medium, characterized in that The computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to enable a computer to execute the two-wheeled vehicle battery explosion prevention method according to any one of claims 1 to 7.

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