A battery detection device with bulge alarm and protection function

Abstract

The application relates to the technical field of battery detection, and discloses a battery detection device with bulging alarm and protection functions, which comprises a protection box, a limiting frame is fixedly installed at the central position of the upper surface of the protection box, a battery body is arranged in the limiting frame, and bulging alarm protection mechanisms are arranged on the two sides of the protection box. Compared with the prior art, the battery detection device with the bulging alarm and protection functions triggers the contact alarm through the displacement of the sliding limiting plate, the connecting frame and the extension frame, early and active early warning of safety risks is realized, hot runaway combustion or explosion accidents caused by failure to timely detect bulging are effectively avoided, the locking of the rotating shaft by the fastening block one is released through the transmission of the gear, the gear rack two, the magnet one and the magnet two, the rotating placement plate is turned over under the action of gravity, the battery body is automatically dropped into the dropping protection groove, and therefore, rapid physical isolation of the faulty battery is realized.

Description

Technical Field

[0001] This invention relates to the field of battery testing technology, specifically to a battery testing device with bulging alarm and protection functions. Background Technology

[0002] Automotive batteries include two core types: lead-acid batteries and lithium-ion batteries. Lead-acid batteries use lead-based electrodes and sulfuric acid electrolyte. Their core function is to provide high-rate discharge current to drive the starter motor and serve as a voltage regulator for the vehicle's electrical system. Lithium-ion battery systems consist of multiple battery modules connected in series. Each module contains parallel cell units and an attached battery management system. Energy storage and release are achieved through lithium-ion insertion and extraction reactions between the positive and negative electrode materials, directly providing power to the drive motor and determining the vehicle's range. Automotive battery life testing aims to assess the battery's health and remaining lifespan. This requires connecting to the vehicle's diagnostic interface to read core data from the battery management system, such as the percentage of health status, internal resistance, and inter-cell voltage difference, to accurately determine the degree of battery degradation and consistency, thereby providing early warning of reduced range and ensuring safe use.

[0003] Furthermore, in existing technologies, automotive battery life testing typically relies on standardized laboratory charge-discharge cycle testing methods. This method involves repeatedly applying a constant or operating current to the battery using charge-discharge equipment, and monitoring and recording its capacity decay curve and internal resistance changes in real time. When the battery's measured capacity drops to its rated capacity, its lifespan is considered to have ended.

[0004] When testing battery life through charge-discharge cycles, bulging of the battery is a serious sign of irreversible internal damage. Bubbling leads to a sharp increase in internal resistance and failure of contact between the active material and the current collector, resulting in accelerated capacity decay and a sharp drop in cycle efficiency. When a battery bulges, the deformation force generated cannot be effectively used to proactively alert staff, leading to serious safety hazards. Potential thermal runaway risks cannot be identified in time, and a continuously deteriorating battery may cause combustion or explosion accidents without warning. Furthermore, hidden defects may persist with vehicle use, not only accelerating battery performance degradation but also significantly increasing subsequent repair costs and safety risks due to missing the optimal maintenance window.

[0005] Furthermore, when the battery is continuously bulging, it cannot use its deformation to trigger the automatic protection mechanism, which will lead to a loss of control over systemic risks. The continuously deteriorating battery cells cannot be isolated or removed in time, which will evolve from a single cell failure into a catastrophic accident such as the burning or explosion of the entire battery pack. It will also bring related safety risks when conducting life testing.

[0006] Therefore, we propose a battery detection device with bulging alarm and protection functions to solve this deficiency in the existing technology. Summary of the Invention

[0007] To address the shortcomings of existing technologies that cannot utilize the deformation force generated during detection for automated alarms and cannot provide automated protection, this invention provides a battery detection device with bulging alarm and protection functions.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a battery detection device with bulging alarm and protection functions, including a protective box, a limiting frame fixedly installed at the center of the upper surface of the protective box, a battery body placed inside the limiting frame, and bulging alarm protection mechanisms provided on both sides of the protective box.

[0009] The power input end of the bulge alarm protection mechanism is equipped with a warning mechanism that converts the bulging force during battery detection into a mechanical force to trigger an alarm. The warning mechanism is triggered by the generation of bulge.

[0010] The warning mechanism is equipped with a protective mechanism at its power output end that converts the continuous bulging force during battery detection into a mechanical force that triggers the battery to fall. The protective mechanism is triggered by the continuous bulging.

[0011] The bulge alarm protection mechanism consists of a warning mechanism and a protective mechanism;

[0012] The warning mechanism includes a slide rail, a sliding limit plate, a connecting frame, an extension frame, and a contact alarm.

[0013] The bottom of the slide rail is fixedly installed on the upper surface of the protective box. The inner wall of the bottom end of the sliding limit plate is slidably connected to the outer surface of the slide rail, and the lower surface of the sliding limit plate is in contact with the upper surface of the protective box. The back of the connecting frame is fixedly installed on the left side of the front of the sliding limit plate. The back of the extension frame is fixedly installed on the right side of the front of the connecting frame. The bottom of the contact alarm is fixedly installed on the left side of the upper surface of the protective box, and the inside of the contact alarm is in direct contact with the position of the moved extension frame. A rack is fixedly installed on the left side of the front of the connecting frame.

[0014] A limit block is fixedly installed on the left side of the front of the protective box;

[0015] The protective mechanism includes a rack 2, a crossbar, a magnet 1, a connecting block, a magnet 2, a connecting plate, and a fastening block 1. The rack 2 drives the magnet 1 to move through the crossbar. The magnet 1 attracts the magnet 2 through magnetic force, which in turn drives the connecting plate and the fastening block 1 to move, thereby releasing the lock on the rotating shaft, causing the rotating placement plate to flip over, and the battery body to fall into the drop protection groove.

[0016] The upper surface of the protective box has a rectangular groove. The lower surface of the rack two is slidably connected to the inner wall of the rectangular groove. The left side of the crossbeam is fixedly installed to the right side of the rack two. The front of the magnet one is fixedly installed to the back of the crossbeam. The back of the connecting block is fixedly installed to the front of the protective box. The inside of the connecting block has a sliding groove. The outer surface of the magnet two is slidably installed to the inner wall of the sliding groove. The right side of the connecting plate is fixedly installed to the left side of the magnet two. The right side of the fastening block one is fixedly installed to the left side of the connecting plate.

[0017] A fixing plate is fixedly installed on the left side of the upper surface of the protective box, and a gear is installed inside the fixing plate via a shaft.

[0018] Furthermore, the inner wall of the limiting block is slidably mounted to the outer surface of the rack.

[0019] Furthermore, the position of the first magnet after it has moved is connected to the inside of the sliding groove, and the first magnet moves by attracting the second magnet through magnetic force.

[0020] Furthermore, the upper surface of the gear meshes with the upper surface of rack two, and the outer surface of the gear meshes with the lower surface of rack one after it has moved.

[0021] Furthermore, a rotating shaft is rotatably mounted on the inner wall of the protective box, and a rotating placement plate is fixedly mounted on the outer surface of the rotating shaft, with the upper surface of the rotating placement plate abutting against the lower surface of the battery body.

[0022] Furthermore, a fastening block two is abutted against the outer surface of one end of the rotating shaft, and the back of the fastening block two is fixedly installed against the front of the protective box, while the outer surface of the rotating shaft abuts against the left side of the fastening block one.

[0023] Furthermore, the protective box has a drop protection groove inside, and a retaining plate is snapped into the inside of the protective box. A latching groove is provided on the upper side of the front of the retaining plate.

[0024] Compared with the prior art, the present invention provides a battery detection device with bulging alarm and protection functions, which has the following beneficial effects:

[0025] 1. This battery detection device with bulging alarm and protection functions triggers a contact alarm by the displacement of the sliding limit plate, connecting frame, and extension frame, achieving early and proactive warning of safety risks. This effectively avoids thermal runaway combustion or explosion accidents that may be caused by failure to detect bulging in time. Through the transmission of gears, rack and pinion two and magnets one and two, the fastening block one is automatically triggered to release the lock on the rotating shaft, causing the rotating placement plate to flip under the action of gravity, and the battery body is automatically dropped into the drop protection groove, thereby achieving rapid physical isolation of the faulty battery and improving the safety of the detection process.

[0026] 2. This battery detection device with bulge alarm and protection functions uses a motion conversion and amplification mechanism composed of rack one, gear, and rack two to ensure reliable transmission of minute bulge deformation and trigger subsequent actions. The protection mechanism is triggered by non-contact attraction between magnet one and magnet two, avoiding the failure problem of complex circuits in harsh environments, further enhancing the overall reliability of the system. The combination of the limiting frame and the sliding limiting plate ensures the stability of the battery body position, so that the device can achieve automated safety protection while also taking into account the convenience of maintenance and overall reliability. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 For the present invention Figure 1 A top-view structural diagram;

[0029] Figure 3 For the present invention Figure 1 A schematic diagram of the cross-sectional structure;

[0030] Figure 4 For the present invention Figure 3 Internal structure diagram;

[0031] Figure 5 For the present invention Figure 3 A top-view structural diagram;

[0032] Figure 6 For the present invention Figure 5 Enlarged schematic diagram of the structure at point A;

[0033] Figure 7 For the present invention Figure 3 A schematic diagram of the side view structure;

[0034] Figure 8 For the present invention Figure 7 Enlarged schematic diagram of the structure at point B.

[0035] In the diagram: 1. Protective box; 2. Limiting frame; 3. Rotating shaft; 4. Rotating placement plate; 5. Battery body; 6. Slide rail; 7. Sliding limiting plate; 8. Drop protection groove; 9. Clamping plate; 10. Buckling groove; 11. Connecting frame; 12. Extension frame; 13. Contact alarm; 14. Rack one; 15. Fixing plate; 16. Gear; 17. Rectangular groove; 18. Rack two; 19. Limiting block; 20. Cross frame; 21. Magnet one; 22. Connecting block; 23. Sliding groove; 24. Magnet two; 25. Connecting plate; 26. Fastening block one; 27. Fastening block two. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] Please see Figure 1 , Figure 6 , Figure 7 and Figure 8 A battery detection device with bulging alarm and protection functions includes a protective box 1, a limiting frame 2 fixedly installed at the center of the upper surface of the protective box 1, a battery body 5 placed inside the limiting frame 2, and bulging alarm protection mechanisms provided on both sides of the protective box 1.

[0038] The power input end of the bulge alarm protection mechanism is equipped with a warning mechanism that converts the bulging force of the battery body 5 during detection into a mechanical force to trigger the alarm. The warning mechanism is triggered by the generation of bulge.

[0039] The power output end of the warning mechanism is equipped with a protective mechanism that converts the continuous bulging force of the battery body 5 during detection into a mechanical force that triggers the battery to fall. The protective mechanism is triggered by the continuous bulging.

[0040] The bulge alarm protection mechanism consists of a warning mechanism and a protective mechanism.

[0041] The warning mechanism includes a slide rail 6, a sliding limit plate 7, a connecting frame 11, an extension frame 12, and a contact alarm 13;

[0042] The protective mechanism includes a second rack 18, a crossbeam 20, a first magnet 21, a connecting block 22, a second magnet 24, a connecting plate 25, and a first fastening block 26. The second rack 18 drives the first magnet 21 to move via the crossbeam 20. The first magnet 21 attracts the second magnet 24 through magnetic force, which in turn drives the connecting plate 25 and the first fastening block 26 to move, releasing the lock on the rotating shaft 3, causing the rotating placement plate 4 to flip over, and the battery body 5 to fall into the drop protection groove 8. A rectangular groove 17 is provided on the upper surface of the protective box 1. The lower surface of the second rack 18 is slidably connected to the inner wall of the rectangular groove 17. The left side of the crossbeam 20 is fixedly installed with the right side of the second rack 18, and the front of the first magnet 21 is connected to the right side of the crossbeam 20. The back of the cross frame 20 is fixedly installed, the back of the connecting block 22 is fixedly installed to the front of the protective box 1, the connecting block 22 has a sliding groove 23 inside, the outer surface of the second magnet 24 is slidably installed to the inner wall of the sliding groove 23, the right side of the connecting plate 25 is fixedly installed to the left side of the second magnet 24, the right side of the fastening block 26 is fixedly installed to the left side of the connecting plate 25, the limit block 19 is fixedly installed to the left side of the front of the protective box 1, the inner wall of the limit block 19 is slidably installed to the outer surface of the second rack 18, the position of the first magnet 21 after moving is connected to the inside of the sliding groove 23, and the first magnet 21 moves by attracting the second magnet 24 with magnetic force.

[0043] Specifically, the bulging alarm protection mechanism converts the bulging force of the battery body 5 during detection into a triggering mechanical force. When the battery bulges, it can promptly trigger an alarm, alerting staff to the battery abnormality. This helps to address the problem battery in a timely manner, preventing more serious safety accidents caused by battery bulging and ensuring a safe operating environment. The protective mechanism converts the continuous bulging force of the battery body 5 during detection into a triggering mechanical force that causes the battery to fall. When the battery bulges to a certain extent, the protective mechanism is triggered, and the action of the fastening block 26 and other related components may cause the battery to fall from the limiting frame 2. This prevents the bulging battery from continuing to damage other components within the device or from causing an explosion due to the bulging worsening, further improving the safety of the detection device during use.

[0044] The rack 18 slides within the rectangular groove 17, precisely responding to the force generated by the bulge and transmitting it to the crossbeam 20. The crossbeam 20 then moves the magnet 21. This step-by-step force transmission ensures accurate and stable force conversion, enabling the protective mechanism to react promptly to battery bulging. The magnetic attraction between magnet 21 and magnet 24 enables linkage. When magnet 21 moves with rack 18 to a position connected to the sliding groove 23, it attracts magnet 24 to slide within the groove, thereby moving the connecting plate 25 and fastening block 26. This magnetic linkage eliminates the need for complex mechanical transmission components, reducing the probability of malfunctions and improving the reliability and stability of the device. The limiting block 19 on the protective box 1 has its inner wall slidably mounted to the outer surface of rack 18, providing stable guidance and support for the sliding of rack 18, preventing it from shifting or wobbling during sliding, and ensuring the smooth operation of the entire protective mechanism.

[0045] Please see Figure 1 , Figure 5 and Figure 6 The bottom of the slide rail 6 is fixedly installed on the upper surface of the protective box 1. The inner wall of the bottom end of the sliding limit plate 7 is slidably connected to the outer surface of the slide rail 6, and the lower surface of the sliding limit plate 7 is in contact with the upper surface of the protective box 1. The back of the connecting frame 11 is fixedly installed on the left side of the front of the sliding limit plate 7. The back of the extension frame 12 is fixedly installed on the right side of the front of the connecting frame 11. The bottom of the contact alarm 13 is fixedly installed on the left side of the upper surface of the protective box 1, and the inside of the contact alarm 13 is in direct contact with the position of the moved extension frame 12. A rack 14 is fixedly installed on the left side of the front of the connecting frame 11. A fixing plate 15 is fixedly installed on the left side of the upper surface of the protective box 1. A gear 16 is installed inside the fixing plate 15 through a shaft. The upper surface of the gear 16 meshes with the upper surface of the rack 18, and the outer surface of the gear 16 meshes with the lower surface of the moved rack 14.

[0046] Specifically, when the battery body 5 bulges, the force generated by the bulge will push the sliding limit plate 7 to slide on the slide rail 6. Because the sliding limit plate 7 is tightly fitted with the slide rail 6 and the lower surface of the sliding limit plate 7 is in contact with the upper surface of the protective box 1, the sliding limit plate 7 can respond promptly to small bulging forces, with high sensitivity. The movement of the sliding limit plate 7 drives the connecting frame 11 and the extension frame 12 to move. When the extension frame 12 moves to direct contact with the contact alarm 13, the contact alarm 13 immediately sounds an alarm, which can quickly remind the staff that there is a bulging problem with the battery, so that timely measures can be taken to avoid the potential danger from further expanding. The rack 14 installed on the connecting frame 11 meshes with the gear 16 installed through a shaft in the fixed plate 15 on the left side of the upper surface of the protective box 1. At the same time, the gear 16 meshes with the rack 18, realizing the clever transmission and linkage of force. When the sliding limit plate 7 drives the connecting frame 11 to move and the rack 14 moves, the gear 16 will rotate accordingly, thereby driving the rack 18 to move and triggering the subsequent protective mechanism action.

[0047] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 The inner wall of the protective box 1 is rotatably mounted with a rotating shaft 3. A rotating placement plate 4 is fixedly mounted on the outer surface of the rotating shaft 3, and the upper surface of the rotating placement plate 4 abuts against the lower surface of the battery body 5. A fastening block 27 abuts against the outer surface of one end of the rotating shaft 3, and the back of the fastening block 27 is fixedly mounted against the front of the protective box 1. The outer surface of the rotating shaft 3 abuts against the left side of the fastening block 26. A drop protection groove 8 is opened inside the protective box 1. A locking plate 9 is snapped into the inside of the protective box 1. A latching groove 10 is opened on the upper side of the front of the locking plate 9.

[0048] Specifically, the back of fastening block 27 is fixedly installed to the front of the protective box 1, and it abuts against the outer surface of one end of the rotating shaft 3. At the same time, the outer surface of the rotating shaft 3 also abuts against the left side of fastening block 26. This restricts the rotating shaft 3 from different positions, effectively preventing the rotating shaft 3 from rotating unexpectedly. This ensures the stability of the battery body 5 on the rotating placement plate 4, avoiding the battery from being affected by shaking or moving during the testing process, which could even cause a safety accident. Furthermore, both fastening blocks 26 and 27 are made of conventional metals or engineering plastics. These materials have sufficient strength, rigidity, and wear resistance to meet the requirements of the mechanical structure under normal conditions. The functional requirements under operating conditions, its cooperation with the rotating shaft 3 is a conventional mechanical cooperation, and the locking relationship between the fastening block 1 26, the fastening block 27 and the rotating shaft 3 during use is essentially a mechanical locking structure. Its function depends on the geometric fit between the components. The ends of the fastening block 1 26 and the fastening block 27 that contact the rotating shaft 3 are set as arc concave surfaces, which match the shape of the rotating shaft 3. In the locked state, under the pre-tightening force of the magnet 2, the arc concave surfaces of the fastening block 1 26 and the fastening block 27 form a self-locking with the plane on the rotating shaft, thereby restricting the rotation of the rotating shaft 3, rather than relying on a specific static friction coefficient between materials.

[0049] The protective box 1 also features a drop protection groove 8 inside. When the battery falls due to bulging or other reasons, it provides a safe space to contain the battery, preventing it from falling directly into the external environment and causing damage or other dangers. The drop protection groove 8 is designed to cushion and protect the battery when it falls, reducing the risk of battery damage and ensuring the safety of the surrounding environment. The locking plate 9 inside the protective box 1 and the latching groove 10 on its front provide convenient maintenance and operation methods for staff. When it is necessary to open the protective box 1 for internal inspection, replacement of parts, or removal of the battery, staff can easily remove the locking plate 9 from the protective box 1 through the latching groove 10 without using complicated tools or performing cumbersome operations, thus improving the efficiency and convenience of device maintenance.

[0050] It should be added that: in the initial stage of bulging, the force is transmitted through the sliding limit plate 7 and the rack 14, mainly driving the warning mechanism with a small load to achieve early warning. Only when the bulge continues to deteriorate and the displacement accumulates to a certain extent will the magnet 21 move to the position aligned with the sliding groove 23, thereby triggering the protective mechanism that requires a larger tripping force. This effectively distinguishes between slight deformation and dangerous bulge, prevents false action, and ensures that the protective action is triggered only at truly dangerous moments. At the same time, the sliding limit of the limit block 19 on the rack 18, and the cooperation between the rotating shaft 3 and the fastening block 27, together ensure the accuracy and reliability of the entire force transmission path and the flipping and falling process.

[0051] Other details include the simple mechanism of battery body 5 dropping by rotating placement plate 4 around rotation axis 3. Resetting is straightforward; simply lift the battery and placement plate manually and re-lock them with fastening block 26. This simple operation automatically isolates potentially thermally runaway batteries into the drop protection slot 8 inside the robust protective box 1, providing a sealed and safe operating space for subsequent handling and greatly protecting the safety of maintenance personnel. Furthermore, the latch plate 9 can be easily pulled out via the latch 10 for cleaning the drop protection slot 8 or safely removing damaged batteries. The entire process avoids direct contact with high-temperature or hazardous components, significantly improving the safety of maintenance operations.

[0052] Working principle and usage steps: When performing charge / discharge cycle testing, if the battery body 5 bulges, its expansion force will push the sliding limit plate 7 to move outward along the slide rail 6. The sliding limit plate 7 drives the rack 14 to move through the connecting frame 11. The rack 14 drives the gear 16 meshing with it to rotate. The rotation of the gear 16 drives the rack 2 18 meshing with its upper surface to move away from the battery body 5 along the rectangular groove 17 under the constraint of the rectangular groove 17 and the limit block 19. The rack 2 18 drives the magnet 21 to move synchronously through the cross frame 20. When the displacement of the magnet 21 has not yet reached the position aligned with the sliding groove 23, the extension frame 12 fixed to the connecting frame 11 contacts the trigger part of the contact alarm 13 with the displacement, thereby activating the contact alarm and realizing the initial reminder to the staff. However, in As the bulging continues to worsen, the continuous bulging of the battery body 5 causes the above-mentioned linkage process to proceed further. When magnet 1 21 moves to be directly opposite the sliding groove 23, the magnetic attraction between it and magnet 24 overcomes the frictional force, driving magnet 24 to slide in the sliding groove 23 towards the direction of magnet 1 21. Magnet 24 pushes fastening block 1 26 away from the rotating shaft 3 through connecting plate 25, releasing it from the abutment constraint on the end of the rotating shaft 3. Once the constraint is released, due to the gravity of the battery body 5, the rotating placement plate 4 rotates downward around the rotating shaft 3, and the battery body 5 falls into the drop protection groove 8 at the bottom of the protective box 1, achieving automatic isolation and thus avoiding the spread of thermal runaway and causing a catastrophic accident. After the inspection is completed, the staff can pull out the card plate 9 through the snap-lock groove 10 to clean and maintain the drop protection groove 8.

[0053] This application includes a PLC controller, a control panel, and a power supply battery, and belongs to the prior art for equipment control and operation.

[0054] Beneficial effects: The bulging force first pushes the sliding limit plate 7 to move along the slide rail 6, and then drives the rack 14 to rotate the gear 16 through the connecting frame 11. The rotation of the gear 16 drives the rack 2 18 to move horizontally under the constraint of the rectangular groove 17 and the limit block 19. In the early stage of bulging, the extension frame 12, which is fixed to the connecting frame 11, triggers the contact alarm 13 with displacement, realizing active audible and visual warning for the staff, effectively avoiding the possible combustion or explosion accident caused by failure to detect the potential thermal runaway risk in time. As the bulging continues to deteriorate, the rack 2 18 drives the magnet 1 21 to move through the cross frame 20 to align with the sliding groove 23, and attracts the magnet 2 2 through magnetic force. 4. The connecting plate 25 and the fastening block 26 release the lock on the rotating shaft 3, causing the rotating placement plate 4 to flip under the action of gravity. The battery body 5 then falls into the drop protection groove 8 at the bottom of the protective box 1, realizing the rapid and automatic isolation of the faulty battery. This avoids the catastrophic accident of a single cell failure evolving into the burning or explosion of the entire battery pack. In addition, through the cooperation of the rack, gear 16 and magnetic components, it realizes accurate response and multi-level protection for the bulging process. The structure is simple and reliable. At the same time, the pull-out card plate 9 and the latching groove 10 provide convenience for cleaning and maintaining the drop protection groove 8, which significantly improves the safety, reliability and maintenance convenience of the detection process.

[0055] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A battery detection device with bulging alarm and protection functions, characterized in that, The protective box (1) includes a limiting frame (2) fixedly installed at the center of the upper surface of the protective box (1), and a battery body (5) is placed inside the limiting frame (2). Both sides of the protective box (1) are provided with bulging alarm protection mechanisms. The power input end of the bulge alarm protection mechanism is equipped with a warning mechanism that converts the bulging force of the battery body (5) during detection into a triggering alarm mechanical force. The warning mechanism is triggered by the generation of bulge. The power output end of the warning mechanism is equipped with a protective mechanism that converts the continuous bulging force of the battery body (5) during detection into a mechanical force that triggers the battery to fall. The protective mechanism performs a triggering operation through the continuous bulging. The bulge alarm protection mechanism consists of a warning mechanism and a protective mechanism; The warning mechanism includes a slide rail (6), a sliding limit plate (7), a connecting frame (11), an extension frame (12), and a contact alarm (13). The bottom of the slide rail (6) is fixedly installed on the upper surface of the protective box (1). The inner wall of the bottom end of the sliding limit plate (7) is slidably connected to the outer surface of the slide rail (6), and the lower surface of the sliding limit plate (7) is in contact with the upper surface of the protective box (1). The back of the connecting frame (11) is fixedly installed on the left side of the front of the sliding limit plate (7). The back of the extension frame (12) is fixedly installed on the right side of the front of the connecting frame (11). The bottom of the contact alarm (13) is fixedly installed on the left side of the upper surface of the protective box (1), and the inside of the contact alarm (13) is in direct contact with the position of the moved extension frame (12). A rack (14) is fixedly installed on the left side of the front of the connecting frame (11). A limit block (19) is fixedly installed on the left side of the front of the protective box (1). The protective mechanism includes a rack two (18), a cross frame (20), a magnet one (21), a connecting block (22), a magnet two (24), a connecting plate (25), and a fastening block one (26). The rack two (18) drives the magnet one (21) to move through the cross frame (20). The magnet one (21) attracts the magnet two (24) through magnetic force, which drives the connecting plate (25) and the fastening block one (26) to move, thereby releasing the lock on the rotating shaft (3), causing the rotating placement plate (4) to flip over, and the battery body (5) to fall into the drop protection groove (8). The upper surface of the protective box (1) is provided with a rectangular groove (17). The lower surface of the rack two (18) is slidably connected to the inner wall of the rectangular groove (17). The left side of the cross frame (20) is fixedly installed with the right side of the rack two (18). The front of the magnet one (21) is fixedly installed with the back of the cross frame (20). The back of the connecting block (22) is fixedly installed with the front of the protective box (1). The inside of the connecting block (22) is provided with a sliding groove (23). The outer surface of the magnet two (24) is slidably installed with the inner wall of the sliding groove (23). The right side of the connecting plate (25) is fixedly installed with the left side of the magnet two (24). The right side of the fastening block one (26) is fixedly installed with the left side of the connecting plate (25). A fixing plate (15) is fixedly installed on the left side of the upper surface of the protective box (1), and a gear (16) is installed inside the fixing plate (15) via a shaft.

2. The battery detection device with bulging alarm and protection functions according to claim 1, characterized in that: The inner wall of the limiting block (19) is slidably installed on the outer surface of the rack (18).

3. The battery detection device with bulging alarm and protection functions according to claim 1, characterized in that: The position of the first magnet (21) after it moves is connected to the inside of the sliding groove (23), and the first magnet (21) moves by attracting the second magnet (24) with magnetic force.

4. The battery detection device with bulging alarm and protection functions according to claim 1, characterized in that: The upper surface of the gear (16) meshes with the upper surface of the rack (18), and the outer surface of the gear (16) meshes with the lower surface of the rack (14) after it has moved.

5. A battery detection device with bulging alarm and protection functions according to claim 1, characterized in that: The inner wall of the protective box (1) is rotatably mounted with a rotating shaft (3), and a rotating placement plate (4) is fixedly mounted on the outer surface of the rotating shaft (3), and the upper surface of the rotating placement plate (4) abuts against the lower surface of the battery body (5).

6. A battery detection device with bulging alarm and protection functions according to claim 5, characterized in that: The outer surface of one end of the rotating shaft (3) abuts against the fastening block two (27), and the back of the fastening block two (27) is fixedly installed with the front of the protective box (1). The outer surface of the rotating shaft (3) abuts against the left side of the fastening block one (26).

7. A battery detection device with bulging alarm and protection functions according to claim 1, characterized in that: The protective box (1) has a drop protection groove (8) inside, and a card plate (9) is snapped into the inside of the protective box (1). A latching groove (10) is opened on the upper side of the front of the card plate (9).

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