New energy automobile battery puncture detection equipment

Abstract

The invention relates to the technical field of battery detection, in particular to new energy automobile battery puncture detection equipment which comprises a support, a detection cabinet is fixedly mounted on the upper surface of the support, a cabinet door is movably mounted on the outer side of the detection cabinet, a mounting opening is formed in the upper surface of the detection cabinet, and a first telescopic air cylinder is fixedly mounted in the mounting opening; a lifting plate is fixedly mounted at the telescopic end of the first telescopic air cylinder, a mounting column is fixedly mounted on the lower surface of the lifting plate, a puncture needle is arranged at the bottom end of the mounting column, and a limiting rod is fixedly mounted on the upper surface of the lifting plate and penetrates through the top end of the detection cabinet. By means of dual protection of the cabinet door and the anti-explosion module, the detection process is safer, furthermore, electrolyte leaked by part of batteries due to puncture can be discharged through the liquid penetrating holes and collected through the liquid collecting module, the problem that the electrolyte is difficult to clean due to leakage is effectively solved, and the use effect is better.

Description

Technical Field

[0001] The present invention relates to the technical field of battery detection, and in particular to a battery puncture detection device for new energy vehicles. Background Art

[0002] Against the backdrop of global advocacy for green mobility and sustainable development, the new energy vehicle industry is booming. As a core component of new energy vehicles, battery safety is directly related to vehicle safety, the safety of users' lives and property, and the healthy development of the entire industry. Puncture testing, a key test method for evaluating battery safety performance, simulates the battery's response to extreme conditions such as penetration by sharp objects. It is crucial for assessing the battery's thermal stability and potential fire and explosion risks.

[0003] However, there are many problems with the new energy vehicle battery puncture detection equipment currently on the market, which seriously restricts the accuracy, safety and convenience of detection.

[0004] First, safety protection is insufficient. Existing testing equipment cannot effectively prevent the spread of flames, smoke, and debris generated after battery puncture during the puncture process. Many devices lack reliable protective structures, or the protective measures only target a single risk, such as focusing only on preventing the spread of flames while ignoring the hazards of flying debris. This not only poses a threat to the safety of the testers, but may also cause damage to other equipment in the testing site. Once an accident occurs, the losses will be huge. Second, electrolyte leakage is difficult to handle. When electrolyte leaks during the battery puncture process, most existing testing equipment does not have a dedicated collection mechanism, causing the electrolyte to flow directly out of the test cabinet, making it difficult to clean. Therefore, there is an urgent need to design a new energy vehicle battery puncture test device to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to solve the defects in the prior art and to propose a new energy vehicle battery puncture detection device.

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

[0007] A new energy vehicle battery puncture detection device comprises a bracket, a detection cabinet is fixedly mounted on the upper surface of the bracket, a cabinet door is movably mounted on the outer side of the detection cabinet, a mounting opening is opened on the upper surface of the detection cabinet, and a telescopic cylinder is fixedly mounted in the mounting opening, a lifting plate is fixedly mounted on the telescopic end of the telescopic cylinder, and a mounting column is fixedly mounted on the lower surface of the lifting plate, a puncture needle is provided at the bottom end of the mounting column, a limit rod is fixedly mounted on the upper surface of the lifting plate, and the limit rod passes through the top of the detection cabinet, and a liquid permeable hole is also opened on the bottom inner wall of the detection cabinet, and further comprises:

[0008] An explosion-proof module includes an explosion-proof cover provided below the lifting plate. The explosion-proof cover is made of a transparent fire-resistant material. When the lifting plate moves downward, the explosion-proof cover moves downward with the lifting plate and covers the battery, thereby improving the protection performance of the equipment.

[0009] The liquid collecting module includes a liquid collecting hopper arranged below the detection cabinet, and the liquid collecting hopper is located directly below the liquid permeable hole, and is used to collect electrolyte leaked after the battery is punctured.

[0010] As a further solution of the present invention: the explosion-proof module also includes fixing holes distributed in an annular manner at equal distances on the outer wall of the explosion-proof cover, and a fixing cylinder is fixedly installed in the fixing hole, a lower pressure rod is fixedly installed on the lower surface of the lifting plate, and the bottom end of the lower pressure rod is located in the fixing cylinder, the bottom end of the lower pressure rod is fixedly installed with a displacement block, and the outer wall of the displacement block fits the inner wall of the fixing cylinder, the outer side of the lower pressure rod is sleeved with a spring, one end of the spring is connected to the top inner wall of the fixing cylinder, and the other end of the spring is connected to the upper surface of the displacement block, the top of the explosion-proof cover is also connected to a puncture tube, and the outer wall of the mounting column fits the inner wall of the puncture tube, a limiting assembly is also provided in the explosion-proof cover, which is used to limit the position of the battery when the explosion-proof cover covers the battery, and a smoke exhaust assembly is provided on one side outer wall of the detection cabinet for directionally exhausting smoke generated during the battery puncture process.

[0011] As a further solution of the present invention: the limiting assembly includes a limiting cylinder that passes through and is fixedly installed in the explosion-proof cover, the limiting cylinder is threaded with a screw, the top end of the screw is fixedly installed with an adjusting wheel, and the bottom end of the screw is fixedly installed with a support plate.

[0012] As a further solution of the present invention: the smoke exhaust component includes an exhaust fan fixedly installed on the outer wall of one side of the detection cabinet, the exhaust end of the exhaust fan is connected to a smoke exhaust pipe, and the end of the smoke exhaust pipe is connected to a connecting pipe, the end of the connecting pipe is connected to the explosion-proof cover, and a metal mesh is also fixedly installed in the connecting pipe, and a heat sink connected to the metal mesh is fixedly installed on the outside of the connecting pipe, and the air guide end of the exhaust fan is connected to the smoke exhaust pipe.

[0013] As a further solution of the present invention: the bottom inner wall of the detection cabinet is fixedly installed with a fence, and the liquid permeable hole is located in the fence. The bottom inner wall of the detection cabinet is also fixedly installed with supporting blocks staggered with the liquid permeable holes for supporting batteries.

[0014] As a further solution of the present invention: detection openings are further provided on the outer walls of both sides of the detection cabinet, and infrared thermal imagers are fixedly installed in the detection openings.

[0015] As a further solution of the present invention: the liquid collecting module also includes support rods fixed in a ring shape at equal distances to the inner wall of the liquid collecting bucket, the end of the support rod is fixedly installed with a sealing tube, the top of the sealing tube is fixedly installed with a rubber gasket, and the rubber gasket is in contact with the lower surface of the detection cabinet, the outer wall of the liquid collecting bucket is fixedly installed with a side panel, and the lower surface of the side panel is fixedly installed with a sleeve, the bracket is fixedly provided with a mounting plate, and the mounting plate is fixedly installed with a telescopic cylinder 2, the telescopic end of the telescopic cylinder 2 is fixedly installed with an insertion rod, and the insertion rod is inserted into the sleeve.

[0016] As a further solution of the present invention: a cavity is opened in the mounting column, and a movable block is movably arranged in the cavity, the top of the puncture needle and the lower surface of the movable block are fixedly connected, and a pressure sensor is fixedly installed between the top of the movable block and the top inner wall of the cavity.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention provides a new energy vehicle battery puncture detection device. Batteries that need to be punctured can be placed in a detection cabinet, and then the cabinet door is closed. The lifting plate is driven downward by a telescopic cylinder, and the lifting plate drives the mounting column and the puncture needle downward to perform a puncture operation on the battery. The explosion-proof cover in the explosion-proof module will cover the battery before the puncture needle punctures, forming a relatively closed space to prevent flames, smoke and fragments generated by the battery during the puncture process from spreading to the surrounding environment. With the help of the double protection of the cabinet door and the explosion-proof cover, the detection process is safer. Furthermore, electrolytes leaked from some batteries due to puncture will be discharged through the liquid permeable hole and collected through the liquid collecting bucket in the liquid collecting module, which effectively solves the problem of difficult cleaning of electrolyte leakage and has better use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the first-view structure of a new energy vehicle battery puncture detection device provided by an embodiment of the present invention;

[0020] Figure 2 A schematic diagram of the first-perspective structure of an explosion-proof module in a new energy vehicle battery puncture detection device provided by an embodiment of the present invention;

[0021] Figure 3 A schematic structural diagram from a second perspective of an explosion-proof module in a new energy vehicle battery puncture detection device provided by an embodiment of the present invention;

[0022] Figure 4 A schematic structural diagram of an explosion-proof cover in a new energy vehicle battery puncture detection device provided by an embodiment of the present invention;

[0023] Figure 5A schematic cross-sectional view of a fixing cylinder in a new energy vehicle battery puncture detection device provided by an embodiment of the present invention;

[0024] Figure 6 A schematic diagram of a half-section structure of an explosion-proof cover in a new energy vehicle battery puncture detection device provided by an embodiment of the present invention;

[0025] Figure 7 A schematic diagram of the structure of a new energy vehicle battery puncture detection device from a second perspective provided by an embodiment of the present invention;

[0026] Figure 8 A schematic structural diagram of a liquid collection module in a new energy vehicle battery puncture detection device provided by an embodiment of the present invention;

[0027] Figure 9 A schematic diagram of a half-section structure of a liquid collecting hopper in a new energy vehicle battery puncture detection device provided by an embodiment of the present invention;

[0028] Figure 10 A schematic diagram of the structure of the enclosure and support block in a new energy vehicle battery puncture detection device provided by an embodiment of the present invention;

[0029] Figure 11 A schematic diagram of the third-perspective structure of a new energy vehicle battery puncture detection device provided by an embodiment of the present invention.

[0030] In the figure: 101- bracket, 102- detection cabinet, 103- cabinet door, 104- telescopic cylinder 1, 105- limit rod, 106- lifting plate, 107- mounting column, 108- puncture needle, 109- permeable hole, 201- explosion-proof cover, 202- fixed cylinder, 203- down pressure rod, 204- displacement block, 205- spring, 206- puncture cylinder, 301- limit cylinder, 302- screw, 303- adjusting wheel, 304- stop plate, 401- Exhaust fan, 402-smoke exhaust pipe, 403-connecting pipe, 404-smoke exhaust pipe, 406-metal mesh, 407-heat sink, 501-enclosure, 502-support block, 503-infrared thermal imager, 601-pressure sensor, 602-movable block, 701-liquid collecting hopper, 702-support rod, 703-sealing tube, 704-rubber gasket, 705-side panel, 706-sleeve, 707-mounting plate, 708-telescopic cylinder 2, 709-insertion rod. DETAILED DESCRIPTION

[0031] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0032] like Figures 1-11As shown, a new energy vehicle battery puncture detection device provided by an embodiment of the present invention includes a bracket 101, a detection cabinet 102 is fixedly installed on the upper surface of the bracket 101, and a cabinet door 103 is movably installed on the outer side of the detection cabinet 102. The cabinet door 103 is made of a transparent material to facilitate observation of changes in the battery after puncture in the detection cabinet 102. A mounting opening is opened on the upper surface of the detection cabinet 102, and a telescopic cylinder 104 is fixedly installed in the mounting opening. A lifting plate 106 is fixedly installed on the telescopic end of the telescopic cylinder 104, and a mounting column 107 is fixedly installed on the lower surface of the lifting plate 106. A puncture needle 108 is provided at the bottom end of the mounting column 107. The lifting plate 106 is fixedly installed on the lower surface of the lifting plate 106. 06 is fixedly installed with a limit rod 105 on the upper surface, and the limit rod 105 passes through the top of the detection cabinet 102. The bottom inner wall of the detection cabinet 102 is also provided with a liquid permeable hole 109, and also includes: an explosion-proof module, the explosion-proof module includes an explosion-proof cover 201 arranged below the lifting plate 106, and the material of the explosion-proof cover 201 is transparent and fire-resistant material. When the lifting plate 106 moves downward, the explosion-proof cover 201 moves down with the lifting plate 106 and covers the battery, so as to improve the protection performance of the equipment; a liquid collecting module, the liquid collecting module includes a liquid collecting hopper 701 arranged below the detection cabinet 102, and the liquid collecting hopper 701 is located directly below the liquid permeable hole 109, and is used to collect electrolyte leaked after the battery is punctured.

[0033] Batteries that need to be punctured can be placed in the inspection cabinet 102, and then the cabinet door 103 is closed, and the lifting plate 106 is driven downward by the telescopic cylinder 104. The lifting plate 106 drives the mounting column 107 and the puncture needle 108 to move downward so that the battery can be punctured. The explosion-proof cover 201 in the explosion-proof module will cover the battery before the puncture needle 108 punctures, forming a relatively closed space to prevent the flame, smoke and debris generated by the battery during the puncture process from spreading to the surrounding environment. With the help of the double protection of the cabinet door 103 and the explosion-proof cover 201, the inspection process is safer. Furthermore, some electrolytes leaked from the battery due to puncture will be discharged through the liquid permeable hole 109 and collected through the liquid collecting bucket 701 in the liquid collecting module, which effectively solves the problem of difficult cleaning of electrolyte leakage and has better use effect.

[0034] As an embodiment of the present invention, please refer to Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6The explosion-proof module includes an explosion-proof cover 201 arranged below the lifting plate 106. The material of the explosion-proof cover 201 is a transparent fire-resistant material. In this embodiment, preferably, the explosion-proof cover 201 is made of PAM board. The outer wall of the explosion-proof cover 201 is provided with fixing holes distributed in an annular shape at equal distances, and a fixing cylinder 202 is fixedly installed in the fixing hole. A lower pressure rod 203 is fixedly installed on the lower surface of the lifting plate 106, and the bottom end of the lower pressure rod 203 is located in the fixing cylinder 202. A displacement block 204 is fixedly installed at the bottom end of the lower pressure rod 203, and the outer wall of the displacement block 204 is aligned with the inner wall of the fixing cylinder 202. The outer side of the lower pressure rod 203 is sleeved with a spring 205, one end of the spring 205 is connected to the top inner wall of the fixed cylinder 202, and the other end of the spring 205 is connected to the upper surface of the displacement block 204. The top of the explosion-proof cover 201 is also connected to a puncture cylinder 206, and the outer wall of the mounting column 107 fits with the inner wall of the puncture cylinder 206. A limiting component is also provided in the explosion-proof cover 201 to limit the position of the battery when the explosion-proof cover 201 covers the battery. A smoke exhaust component is provided on one side of the outer wall of the detection cabinet 102 for directional exhaust of smoke generated during the battery puncture process. When the telescopic cylinder 104 drives the lifting plate 106 to move downward, the explosion-proof cover 201 will first contact the bottom of the detection cabinet 102, and the battery cover will be connected to the explosion-proof cover 201. At this time, the limit assembly can just limit the battery, and as the lifting plate 106 moves further downward, the pressing rod 203 will drive the displacement block 204 to move in the fixed cylinder 202, and the spring 205 will be stretched. At the same time, the puncture needle 108 also moves downward with the lifting plate 106 until the puncture needle 108 completely punctures the battery. At this time, the battery status can be checked through the transparent cabinet door 103 and the explosion-proof cover 201. Furthermore, when it is necessary to observe the status of the battery when the puncture needle 108 is pulled out, the lifting plate 106 can be driven to move upward by the telescopic cylinder 104. At this time, since the limit assembly limits the position of the battery, the puncture needle 108 can be directly pulled out from the battery, avoiding the situation where the battery moves up in the explosion-proof cover 201 together with the puncture needle 108. At the same time, under the elastic force of the spring 205, it can be ensured that the explosion-proof cover 201 always presses against the bottom inner wall of the detection cabinet 102 when the lifting plate 106 moves upward, so as to ensure that the explosion-proof cover 201 is always in a protective state, and the use effect is better.

[0035] As an embodiment of the present invention, please refer to Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6The limiting assembly includes a limiting cylinder 301 that is fixedly installed in the explosion-proof cover 201, and a screw 302 is threadedly connected in the limiting cylinder 301. An adjusting wheel 303 is fixedly installed on the top of the screw 302, and a butt plate 304 is fixedly installed on the bottom end of the screw 302. By rotating the adjusting wheel 303, the screw 302 can be driven to move in the limiting cylinder 301, and then the position of the butt plate 304 at the bottom of the screw 302 can be adjusted to ensure that the distance between the butt plate 304 and the bottom end of the explosion-proof cover 201 is just consistent with the thickness of the battery to be tested. In this way, when the explosion-proof cover 201 completely covers the battery, the butt plate 304 just contacts the surface of the battery, which is convenient for the subsequent puncture needle 108 to be pulled out of the battery, and the use effect is better.

[0036] As an embodiment of the present invention, please refer to Figure 4 and Figure 5 The smoke exhaust component includes an exhaust fan 401 fixedly arranged on the outer wall of one side of the detection cabinet 102. The exhaust end of the exhaust fan 401 is connected to a smoke exhaust pipe 402, and the end of the smoke exhaust pipe 402 is connected to a connecting pipe 403. The specific material of the connecting pipe 403 is not limited. In this embodiment, preferably, the connecting pipe 403 adopts a fire-retardant silicone hose. The end of the connecting pipe 403 is connected to the explosion-proof cover 201, and a metal mesh 406 is fixedly installed in the connecting pipe 403. The metal mesh 406 is made of copper or brass and has good thermal conductivity. A heat sink 407 connected to the metal mesh 406 is fixedly installed on the outside of the connecting pipe 403. The air guide end of the exhaust fan 401 is connected to the smoke exhaust pipe 404. When the battery burns and produces smoke, the exhaust operation can be performed through the exhaust fan 401, so that the smoke in the explosion-proof cover 201 enters the exhaust pipe along the connecting pipe 403. Tube 402, and then directedly discharged through the smoke exhaust pipe 404, effectively preventing the smoke from diffusing around the detection cabinet 102 and endangering the safety of the operators. At the same time, the smoke exhaust pipe 404 also facilitates the collection operation of the smoke generated by the battery combustion, and facilitates the subsequent analysis of the gas composition generated by the combustion. Furthermore, when the smoke is sucked into the connecting pipe 403, part of the flame generated by the battery combustion will also be directed toward the connecting pipe 403, but when the flame contacts the metal mesh 406 at the end of the connecting pipe 403, the heat generated by the flame will be quickly conducted through the metal mesh 406 and dissipated into the surrounding environment with the help of the heat sink 407, so that the side of the metal mesh 406 away from the flame is lower than the ignition point of the smoke, so that the flame cannot be sucked into the connecting pipe 403, ensuring that the exhaust fan 401 only sucks the smoke, effectively preventing the flame from damaging the exhaust fan 401, and having a better use effect.

[0037] As an embodiment of the present invention, please refer to Figure 10The bottom inner wall of the detection cabinet 102 is fixedly installed with a fence 501, and the liquid permeable hole 109 is located in the fence 501. The bottom inner wall of the detection cabinet 102 is also fixedly installed with a support block 502 that is staggered with the liquid permeable hole 109. The support block 502 is semi-spherical and is used to support the battery. When the battery with electrolyte is punctured, the electrolyte will be discharged from the battery. At this time, under the action of the fence 501, the electrolyte can be smoothly discharged through the liquid permeable hole 109. At the same time, the battery can be supported by the support block 502. First, it can prevent the battery from blocking the liquid permeable hole 109. Secondly, when the battery is supported, it is convenient for the puncture needle 108 to completely penetrate the battery, and the use effect is better.

[0038] As an embodiment of the present invention, please refer to Figure 1 and Figure 7 , detection ports are also opened on the outer walls of both sides of the detection cabinet 102, and infrared thermal imagers 503 are fixedly installed in the detection ports. With the help of the infrared thermal imager 503, the changes in the battery surface temperature field can be synchronously recorded to provide data support for the safety assessment of new energy vehicle batteries.

[0039] As an embodiment of the present invention, please refer to Figure 7 、 Figure 8 and Figure 9 The liquid collecting module includes a liquid collecting hopper 701. The inner wall of the liquid collecting hopper 701 is fixedly provided with support rods 702 distributed in an annular manner at equal distances. The end of the support rod 702 is fixedly installed with a sealing cylinder 703. The top of the sealing cylinder 703 is fixedly installed with a rubber gasket 704, and the rubber gasket 704 fits the lower surface of the detection cabinet 102. The outer wall of the liquid collecting hopper 701 is fixedly installed with a side plate 705, and the lower surface of the side plate 705 is fixedly installed with a sleeve 706. A mounting plate 707 is fixedly provided in the bracket 101, and a telescopic cylinder 708 is fixedly installed in the mounting plate 707. The telescopic end of the telescopic cylinder 708 is fixedly installed with an insertion rod 709, and the insertion rod 709 is plugged into In the sleeve 706, when the electrolyte in the battery is discharged through the liquid permeable hole 109, it will directly fall into the liquid collecting bucket 701, and part of the electrolyte will be blocked by the rubber gasket 704 on the top of the sealing cylinder 703 when flowing along the bottom surface of the detection cabinet 102, and then drip into the liquid collecting bucket 701 along the sealing cylinder 703, effectively realizing the complete collection of the electrolyte. After a proper amount of electrolyte is collected in the liquid collecting bucket 701, the insertion rod 709 can be driven downward by the telescopic cylinder 708, thereby causing the liquid collecting bucket 701 to move downward together, and then the side panel 705 can be directly lifted to move the sleeve 706 away from the insertion rod 709 so that the liquid collecting bucket 701 can be removed for cleaning, which is very convenient to use.

[0040] As an embodiment of the present invention, please refer to Figure 6A cavity is provided in the mounting column 107, and a movable block 602 is movably provided in the cavity. The top of the puncture needle 108 is fixedly connected to the lower surface of the movable block 602, and a pressure sensor 601 is fixedly installed between the top of the movable block 602 and the top inner wall of the cavity. When the puncture needle 108 punctures the battery, the pressure sensor 601 above the movable block 602 will be squeezed, thereby detecting the puncture force, which can be used to evaluate the protection capability of the battery shell and has a better use effect.

[0041] During use, the battery that needs to be punctured can be placed in the inspection cabinet 102, and then the cabinet door 103 is closed, and the lifting plate 106 is driven downward by the telescopic cylinder 104. The lifting plate 106 drives the mounting column 107 and the puncture needle 108 to move downward so that the battery can be punctured. The explosion-proof cover 201 in the explosion-proof module will cover the battery before the puncture needle 108 punctures, forming a relatively closed space to prevent the flame, smoke and debris generated by the battery during the puncture process from spreading to the surrounding environment. With the help of the double protection of the cabinet door 103 and the explosion-proof cover 201, the inspection process is safer. Furthermore, some electrolytes leaked from the battery due to puncture will be discharged through the liquid permeable hole 109 and collected through the liquid collecting bucket 701 in the liquid collecting module, which effectively solves the problem of difficult cleaning of electrolyte leakage and has better use effect.

[0042] It should be noted that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A new energy vehicle battery puncture detection device, comprising a bracket, characterized in that: The upper surface of the bracket is fixedly mounted with a detection cabinet, and a cabinet door is movably mounted on the outer side of the detection cabinet. The upper surface of the detection cabinet is provided with a mounting opening, and a telescopic cylinder 1 is fixedly mounted in the mounting opening. A lifting plate is fixedly mounted on the telescopic end of the telescopic cylinder 1, and a mounting column is fixedly mounted on the lower surface of the lifting plate. A puncture needle is provided at the bottom end of the mounting column. A limit rod is fixedly mounted on the upper surface of the lifting plate, and the limit rod passes through the top of the detection cabinet. A liquid permeable hole is also provided on the bottom inner wall of the detection cabinet, and further comprises: An explosion-proof module includes an explosion-proof cover provided below the lifting plate. The explosion-proof cover is made of a transparent fire-resistant material. When the lifting plate moves downward, the explosion-proof cover moves downward with the lifting plate and covers the battery, thereby improving the protection performance of the equipment. The liquid collecting module includes a liquid collecting hopper arranged below the detection cabinet, and the liquid collecting hopper is located directly below the liquid permeable hole, and is used to collect electrolyte leaked after the battery is punctured.

2. A new energy vehicle battery puncture detection device according to claim 1, characterized in that: The explosion-proof module also includes fixing holes distributed in an annular manner at equal distances on the outer wall of the explosion-proof cover, and a fixing cylinder is fixedly installed in the fixing hole, a lower pressure rod is fixedly installed on the lower surface of the lifting plate, and the bottom end of the lower pressure rod is located in the fixing cylinder, a displacement block is fixedly installed on the bottom end of the lower pressure rod, and the outer wall of the displacement block fits the inner wall of the fixing cylinder, a spring is sleeved on the outer side of the lower pressure rod, one end of the spring is connected to the top inner wall of the fixing cylinder, and the other end of the spring is connected to the upper surface of the displacement block, the top of the explosion-proof cover is also connected to a puncture tube, and the outer wall of the mounting column fits the inner wall of the puncture tube, a limiting assembly is also provided in the explosion-proof cover, which is used to limit the position of the battery when the explosion-proof cover covers the battery, and a smoke exhaust assembly is provided on one side outer wall of the detection cabinet for directionally exhausting smoke generated during the battery puncture process.

3. A new energy vehicle battery puncture detection device according to claim 2, characterized in that: The limiting assembly includes a limiting cylinder that passes through and is fixedly installed in the explosion-proof cover. A screw is threadedly connected in the limiting cylinder. An adjusting wheel is fixedly installed on the top end of the screw, and a stop plate is fixedly installed on the bottom end of the screw.

4. A new energy vehicle battery puncture detection device according to claim 3, characterized in that: The smoke exhaust assembly includes an exhaust fan fixedly installed on the outer wall of one side of the detection cabinet, the exhaust end of the exhaust fan is connected to a smoke exhaust pipe, and the end of the smoke exhaust pipe is connected to a connecting pipe, the end of the connecting pipe is connected to the explosion-proof cover, and a metal mesh is also fixedly installed in the connecting pipe, a heat sink connected to the metal mesh is fixedly installed on the outside of the connecting pipe, and the air guide end of the exhaust fan is connected to the smoke exhaust pipe.

5. The new energy vehicle battery puncture detection device according to claim 1, characterized in that: The bottom inner wall of the detection cabinet is fixedly mounted with a fence, and the liquid permeable hole is located in the fence. The bottom inner wall of the detection cabinet is also fixedly mounted with supporting blocks staggered with the liquid permeable holes for supporting batteries.

6. The new energy vehicle battery puncture detection device according to claim 1, characterized in that: Detection ports are also provided on the outer walls of both sides of the detection cabinet, and infrared thermal imagers are fixedly installed in the detection ports.

7. The new energy vehicle battery puncture detection device according to claim 5, characterized in that: The liquid collecting module also includes support rods fixed in a circular shape at equal distances to the inner wall of the liquid collecting hopper, a sealing tube is fixedly installed on the end of the support rod, a rubber gasket is fixedly installed on the top of the sealing tube, and the rubber gasket fits the lower surface of the detection cabinet, a side panel is fixedly installed on the outer wall of the liquid collecting hopper, and a sleeve is fixedly installed on the lower surface of the side panel, a mounting plate is fixedly provided in the bracket, and a telescopic cylinder 2 is fixedly installed in the mounting plate, the telescopic end of the telescopic cylinder 2 is fixedly installed with an insertion rod, and the insertion rod is inserted into the sleeve.

8. The new energy vehicle battery puncture detection device according to claim 1, characterized in that: A cavity is provided in the mounting column, and a movable block is movably provided in the cavity. The top of the puncture needle is fixedly connected to the lower surface of the movable block, and a pressure sensor is fixedly installed between the top of the movable block and the top inner wall of the cavity.

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