A new energy vehicle battery pack with a puncture-resistant tester

Abstract

The application discloses a new energy automobile battery pack puncture tester capable of preventing fire, and relates to the technical field of new energy automobile battery testing.The puncture tester comprises a puncture device, a fixing base is fixedly connected to the bottom end of the puncture device, a main pushing assembly is installed at the upper end of the puncture device, the main pushing assembly comprises a pushing groove, the upper end of the puncture device is provided with the pushing groove, a limiting straight rod is embeddedly connected in the pushing groove, a puncture sliding block is embeddedly connected in the pushing groove, a puncture thimble is fixedly connected to the bottom end of the puncture sliding block, a puncture table surface is fixedly connected to the surface of the puncture device, an isolation protection assembly is fixedly connected to the upper end of the puncture thimble, the isolation protection assembly comprises an upper isolation cover, and the upper end of the puncture thimble is fixedly connected with the upper isolation cover.The application solves the problem that smoke generated by battery combustion caused by puncture cannot be treated.

Description

TECHNICAL FIELD

[0001] The application relates to the field of new energy automobile battery testing, in particular to a puncture-resistant tester for a new energy automobile battery pack capable of preventing fire. BACKGROUND

[0002] If new energy batteries are broadly classified, they can be mainly classified into three categories, namely chemical batteries, physical batteries and biological batteries. The chemical batteries and the physical batteries have been basically widely applied to new energy automobiles, and are everywhere. As for the biological batteries, they are currently mainly applied to the hydrogen energy and fuel cell fields, hydrogen is generated by microorganisms, and electric energy is generated through a fuel cell system. This direction is also regarded as the direction of future new energy automobiles. New energy batteries can also be classified according to functions such as electrolyte and purposes, for example, according to electrolyte, alkaline batteries, acid batteries and organic electrolyte. Secondly, according to working properties and storage methods, the batteries that cannot be recharged, namely primary batteries, rechargeable batteries, namely secondary batteries, and fuel cells can be classified into the second category. Finally, according to the materials used for the positive and negative poles of the batteries, such as zinc batteries, nickel batteries, lithium batteries, manganese dioxide batteries and air batteries, they can also be classified into one category. With the continuous development of new energy automobiles, the safety of batteries as one of the power sources of new energy automobiles cannot be ignored, and therefore, the batteries need to be subjected to impact and even puncture experiments to test the safety of the batteries.

[0003] In this regard, Chinese patent number CN114216844A discloses a puncture device, in particular a new energy lithium battery puncture device. A new energy lithium battery puncture device is needed to replace manual puncture testing of new energy lithium batteries, which is more convenient and avoids injury from explosions. A new energy lithium battery puncture device includes a base, an L-shaped plate and a fixing block, etc. The L-shaped plate is fixedly connected to the top rear side of the base, and the fixing block is fixedly connected to the top middle front side of the base. The new energy lithium battery is placed on the placing mechanism, and then the placing mechanism is operated to adjust the position and angle of the new energy lithium battery. The driving mechanism is started, and the driving mechanism operates to move the steel needle downward. The steel needle contacts the new energy lithium battery and performs puncture testing on the new energy lithium battery. In this way, manual operation of the new energy lithium battery puncture testing is not needed, which is more convenient and can avoid injury from explosions. However, the driving mechanism pushes the steel needle towards the battery, and the battery cannot be handled after self-ignition, which has a certain risk.

[0004] To this end, the Chinese application patent number: CN112763913A, a kind of lithium battery puncture and shearing experimental device, including shell, the shell is equipped with closed shell cavity, the shell cavity is equipped with puncture device, the built-in battery puncture detection device of the present application, by sharp object puncture battery, the performance of battery is detected, to give battery stability and safety index, the built-in battery lifting device of the present application, battery is lifted to specified height, and lifting device built-in collection bin, can collect the various waste water waste produced in detection, the built-in battery shearing device of the present application, battery can be sheared segmented, to detect the damage performance condition of battery, to give safety score, the built-in smoke collection device of the present application, avoid toxic smoke into human body to cause damage to personnel, the built-in water spray cooling fire extinguishing device of the present application, can continuously cool battery after extinguishing, prevent its again spontaneous combustion, the water spray cooling device of its setting, can play the function of battery fire extinguishing, but the toxic gas produced by combustion cannot be treated, which brings certain harm to the environment and human body.

[0005] Nowadays, the new energy battery is punctured for testing, which will cause short circuit in the battery during the puncture process, so that the temperature in the battery rises sharply, and then combustion occurs, which will produce a lot of smoke, but the existing puncture device adopts cooling to avoid battery combustion, so that the reference value of test result is reduced, in the test without cooling treatment, the smoke produced by battery combustion cannot be reasonably treated, which pollutes the environment and is easy to be inhaled into the body, affecting the health.

[0006] In view of the above problems, a new energy automobile battery pack puncture prevention tester is provided. SUMMARY

[0007] The purpose of the present application is to provide a new energy automobile battery pack puncture prevention tester, which solves the problem that the smoke produced by battery combustion caused by puncture in the background art cannot be treated.

[0008] To achieve the above purpose, the present application provides the following technical scheme: a new energy automobile battery pack puncture prevention tester, comprising a puncture device, the puncture device comprises a mounting frame, the bottom end of the mounting frame is fixedly connected with a fixed base;

[0009] The upper end of the mounting frame is provided with a main pushing assembly, the main pushing assembly comprises a pushing groove, the upper end of the mounting frame is provided with a pushing groove, the inside of the pushing groove is embeddedly connected with a limiting straight rod, the inside of the pushing groove is embeddedly connected with a puncture sliding block, the bottom end of the puncture sliding block is fixedly connected with a puncture needle, the surface of the mounting frame is fixedly connected with a puncture table;

[0010] The upper end of the puncture needle is fixedly connected with an isolation protection assembly, the isolation protection assembly comprises an upper isolation cover, the upper end of the puncture needle is fixedly connected with the upper isolation cover, the upper end of the mounting frame is connected with a protection cover, and the front end of the protection cover is connected with a first combined cover plate.

[0011] The bottom end of the first combined cover plate is fixedly connected with a recycling assembly, and the recycling assembly comprises a gas suction port.

[0012] The bottom end of the upper isolation cover is connected with a separation assembly, the separation assembly comprises a connecting rod, the bottom end of the upper isolation cover is connected with the connecting rod, the bottom end of the connecting rod is fixedly connected with a support spring, and the inner side of the support spring is fixedly connected with a linkage rod.

[0013] Preferably, the upper end of the limiting straight rod is sleeved with a puncture sliding block, the upper end of the puncture sliding block is provided with a thread, and the bottom end of the puncture sliding block is fixedly connected with a motor.

[0014] Preferably, the bottom end of the gas suction port is fixedly connected with a second combined cover plate, the first combined cover plate and the second combined cover plate are embedded in a sliding groove on the side of the protection cover close to the first combined cover plate, the first combined cover plate and the second combined cover plate are connected through the gas suction port, the inside of the protection cover is embeddedly connected with a sliding rod, one side of the inside of the protection cover is embeddedly connected with a spring rod, the sliding rod and the spring rod are provided in two groups, and the two groups of sliding rods and spring rods are located on the two sides of the protection cover.

[0015] Preferably, the inside of the gas suction port is embeddedly connected with an air suction guide pipe, the distal end of the air suction guide pipe is connected with a suction pump, the upper surface of the gas suction port is connected with an adjusting sliding block, the adjusting sliding block is located on the inner side of the first combined cover plate, and the inside of the adjusting sliding block is embeddedly connected with a longitudinal rod.

[0016] Preferably, the top end of the longitudinal rod is fixedly connected to the bottom end of the puncture sliding block, the back of the adjusting sliding block is fixedly connected to the back of the first combined cover plate, and the bottom surface of the adjusting sliding block is connected with the gas suction port.

[0017] Preferably, the gas suction port and the air suction guide pipe are located on one side of the puncture needle, the inside of the mounting frame is embeddedly connected with a spray pipe, and the spray pipe extends through the mounting frame to the inside of the protection cover.

[0018] Preferably, the side of the protection cover close to the mounting frame is fixedly connected with a sealing strip, the protection cover and the mounting frame are sealingly connected, a group of grooves are formed in the bottom end of the protection cover, and the size of the grooves matches that of the puncture table surface.

[0019] Preferably, the top end of the spring rod is fixedly connected with a backing plate, one side of the backing plate is fixedly connected with the upper end of the mounting frame, and the backing plate is located at the top end of the protective cover.

[0020] Preferably, a plurality of grooves are formed in the upper end of the puncture platform, a metal filter screen is embeddedly connected in the puncture platform groove, and the puncture needle and the center of the groove of the puncture platform are located at the same longitudinal position.

[0021] Preferably, the support spring is provided with two groups, the two groups of support springs are connected through a linkage rod, and the bending part of the support spring is arc-shaped.

[0022] Compared with the prior art, the present application has the following advantages:

[0023] The present application provides a new energy automobile battery pack puncture tester capable of preventing fire, which is provided with a protective cover, an upper isolation cover and a puncture sliding block. The battery at the upper end of the puncture platform is punctured by the downward movement of the puncture sliding block, so as to realize the puncture test of the battery. The dense smoke generated by the burning of the battery in the test stage is stored in the protective cover. The smoke is collected through the gas suction port and the air suction guide pipe. The smoke can be prevented from being scattered in the air, and the battery explosion debris can be prevented from flying everywhere under the protection of the protective cover. The operation is safer, and the smoke can be reasonably treated to prevent environmental pollution and harm to the body.

[0024] The present application provides a new energy automobile battery pack puncture tester capable of preventing fire, which is provided with a spray pipe, a gas suction port and an air suction guide pipe. The dense smoke generated by the burning is discharged to a designated position for filtering treatment through the air suction guide pipe. The spray pipe is used for cooling and spraying to extinguish and cool the burning battery. The operation is clear, and only the spray pipe and the air suction guide pipe work when the battery is burning. The working environment of the battery under normal circumstances is simulated, so that the test result is more accurate.

[0025] The present application provides a new energy automobile battery pack puncture tester capable of preventing fire, which is provided with a support spring, a connecting rod and a linkage rod. When the puncture needle punctures the battery, the battery is prevented from being lifted by the puncture needle and being clamped together with the puncture needle by the reaction force released by the support spring to separate the puncture needle and the battery. The operation is simple and convenient, and the test progress is also accelerated. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0027] Figure 2 It is a schematic diagram of the structure of the pushing groove and the limiting straight rod of the present application;

[0028] Figure 3 It is a front view structure schematic diagram of the present application;

[0029] Figure 4 It is a first combination cover plate and protective cover connecting structure schematic diagram of the present application;

[0030] Figure 5 It is a push groove and limiting straight rod connecting structure schematic diagram of the present application;

[0031] Figure 6 It is a protective cover sliding state structure schematic diagram of the present application;

[0032] Figure 7 It is a three-dimensional structure schematic diagram of the adjusting sliding block and longitudinal rod of the present application;

[0033] Figure 8 It is a three-dimensional structure schematic diagram of the longitudinal rod and pad plate of the present application;

[0034] Figure 9 It is a puncture state structure schematic diagram of the puncture needle of the present application;

[0035] Figure 10 It is a three-dimensional structure schematic diagram of the supporting spring sheet and connecting rod of the present application.

[0036] In the figure: 1, puncture device; 110, mounting frame; 120, fixed base; 2, main push assembly; 210, push groove; 220, limiting straight rod; 230, puncture sliding block; 240, puncture needle; 250, puncture table surface; 3, isolation protection assembly; 310, upper isolation cover; 320, first combination cover plate; 330, protective cover; 340, second combination cover plate; 350, sliding rod; 360, spring rod; 4, recovery assembly; 410, gas suction port; 420, air suction guide pipe; 430, adjusting sliding block; 440, longitudinal rod; 450, pad plate; 460, spray pipe; 5, separation assembly; 510, supporting spring sheet; 520, connecting rod; 530, linkage rod. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0038] The present application will be described in detail with reference to the drawings in order to further understand the present application.

[0039] In combination with Figures 1-10The present application relates to a new energy vehicle battery pack puncture tester, which can prevent fire, comprising a puncture device 1, the puncture device 1 comprising a mounting frame 110, the bottom end of the mounting frame 110 being fixedly connected with a fixed base 120, in the use of energy storage batteries, new energy batteries are one of the power outputs of the vehicle, the safety of the battery determines the safety of the vehicle, and the puncture test of the battery simulates the puncture of the battery caused by the collision of the vehicle, so that the puncture test of the battery is very necessary.

[0040] The upper end of the mounting frame 110 is provided with a main pushing assembly 2, the main pushing assembly 2 comprising a pushing groove 210, the upper end of the mounting frame 110 being provided with the pushing groove 210, the inside of the pushing groove 210 being embeddedly connected with a limiting straight rod 220, the inside of the pushing groove 210 being embeddedly connected with a puncture sliding block 230, the upper end of the limiting straight rod 220 being sleeved with the puncture sliding block 230, the upper end of the puncture sliding block 230 being provided with a thread, the bottom end of the puncture sliding block 230 being fixedly connected with a motor, the rotation of the limiting straight rod 220 being driven by the motor, when the limiting straight rod 220 rotates, the thread at the upper end pushes the puncture sliding block 230 to rise and fall, the bottom end of the puncture sliding block 230 being fixedly connected with a puncture needle 240, when the limiting straight rod 220 rotates, the puncture sliding block 230 is driven and finally the puncture needle 240 is driven, when the puncture needle 240 falls and hits the battery pack, the battery pack is punctured, during which the driving is completed by the motor without manual operation, the safety and convenience are improved.

[0041] The surface of the mounting frame 110 is fixedly connected with a puncture table 250, a group of grooves are formed in the upper end of the puncture table 250, the puncture table 250 is embeddedly connected with a metal filter screen in the grooves, the puncture needle 240 and the center of the groove of the puncture table 250 are located at the same longitudinal position, the battery pack can be fixed by the puncture table 250, the movement of the battery pack is prevented by the design of the grooves, the position of the battery pack is limited, the puncture needle 240 falls and punctures the battery pack more accurately, if the battery pack burns and needs to be extinguished, water is sprayed for cooling, the water penetrates out through the filter screen, the waste and the inside of the puncture table 250 are retained, and the collection is facilitated.

[0042] The upper end of the puncture thimble 240 is fixedly connected with an isolation protection assembly 3, the isolation protection assembly 3 includes an upper isolation cover 310, the upper end of the puncture thimble 240 is fixedly connected with the upper isolation cover 310, the upper end of the mounting frame 110 is connected with a protective cover 330, the front end of the protective cover 330 is connected with a first combined cover plate 320, the bottom end of the gas suction port 410 is fixedly connected with a second combined cover plate 340, the first combined cover plate 320 and the second combined cover plate 340 are embedded in the sliding groove on the side of the protective cover 330 close to the first combined cover plate 320, the first combined cover plate 320 and the second combined cover plate 340 are connected through the gas suction port 410, the inside of the protective cover 330 is embeddedly connected with a sliding rod 350, one side of the inside of the protective cover 330 is embeddedly connected with a spring rod 360, the sliding rod 350 and the spring rod 360 are provided with two groups, the two groups of sliding rod 350 and spring rod 360 are located on the two sides of the protective cover 330, the side of the protective cover 330 close to the mounting frame 110 is fixedly connected with a sealing strip, the protective cover 330 and the mounting frame 110 are sealingly connected, and a groove is formed in the bottom end of the protective cover 330, and the size of the groove matches that of the puncture table top 250, in order to make the puncture thimble 240 more safe during the puncture process of the battery pack, the battery pack is wrapped by the protective cover 330 and the first combined cover plate 320 and the second combined cover plate 340, so that harmful gases generated by combustion cannot be discharged, and in addition, the spatter of battery explosion can also be avoided, the safety of operation is increased, the upper isolation cover 310 is covered on the top end of the protective cover 330 by the descent of the puncture sliding block 230, then the bottom end of the protective cover 330 and the puncture table top 250 remain the same height, the internal sealing is realized, and the operation is also safer, when loading and testing, the protective cover 330 is pulled downward, so that the protective cover 330 slides downward along the sliding rod 350, at this time, the battery pack is added to the inside of the puncture table top 250 again, after the addition is completed, the protective cover 330 is loosened, and the protective cover 330 is reset under the support of the spring on the upper end of the spring rod 360.

[0043] The bottom end of the first combined cover plate 320 is fixedly connected with a recycling assembly 4. The recycling assembly 4 comprises a gas suction port 410. The bottom end of the first combined cover plate 320 is fixedly connected with the gas suction port 410. The inside of the gas suction port 410 is embeddedly connected with a gas suction guide pipe 420. The gas suction port 410 and the gas suction guide pipe 420 are located on one side of the puncture thimble 240. The end of the gas suction guide pipe 420 is connected with a suction pump. The upper surface of the gas suction port 410 is connected with an adjusting sliding block 430. The adjusting sliding block 430 is located on the inner side of the first combined cover plate 320. The inside of the adjusting sliding block 430 is embeddedly connected with a longitudinal rod 440. The top end of the longitudinal rod 440 is fixedly connected with the bottom end of the puncture sliding block 230. The back surface of the adjusting sliding block 430 is fixedly connected with the back surface of the first combined cover plate 320. The bottom surface of the adjusting sliding block 430 is connected with the gas suction port 410. The inside of the mounting frame 110 is embeddedly connected with a spraying pipe 460. The spraying pipe 460 extends through the mounting frame 110 to the inside of the protective cover 330. The top end of the spring rod 360 is fixedly connected with a backing plate 450. One side of the backing plate 450 is fixedly connected with the upper end of the mounting frame 110. The backing plate 450 is located on the top end of the protective cover 330. In the test stage, puncture may cause short-circuit combustion of the battery pack. In mechanical out-of-control, the battery is extruded or punctured to be damaged, which may cause the battery diaphragm to be punctured, the positive and negative plates to be directly connected, internal short circuit, release of huge heat, and a large amount of smoke, which is mixed with toxic gas and is absorbed by the human body to cause poisoning. The mutual cooperation among the protective cover 330, the upper isolation cover 310 and the puncture table top 250 enables the inside to be in a relatively sealed state. The smoke generated by combustion cannot be discharged outside. During the period, the suction pump at the end of the gas suction guide pipe 420 sucks air. The gas suction port 410 and the gas suction guide pipe 420 suck the harmful gas to a designated position for filtering treatment to avoid harm to human health. The smoke treatment is more timely, the safety of the puncture operation is increased, and the battery combustion is matched with the spraying pipe 460 for fire extinguishing. Water is sprayed on the upper end of the battery pack to cool the battery pack.

[0044] The bottom end of the upper isolation cover 310 is connected with a disengagement assembly 5, the disengagement assembly 5 includes a connecting rod 520, the bottom end of the connecting rod 520 is fixedly connected with a supporting spring piece 510, the inner side of the supporting spring piece 510 is fixedly connected with a linkage rod 530, the supporting spring piece 510 is provided with two groups, the two groups of supporting spring pieces 510 are connected through the linkage rod 530, the bending part of the supporting spring piece 510 is arc-shaped, when the puncture thimble 240 punctures the battery pack, the tip of the puncture thimble 240 is embedded in the battery pack and cannot be automatically disengaged, the battery is supported by the supporting spring piece 510, which assists the disengagement between the puncture thimble 240 and the battery pack, when the puncture thimble 240 descends, the supporting spring piece 510 first contacts the surface of the battery pack, the position of the battery pack is fixed through the contact of the supporting spring piece 510 and the downward extrusion force of the supporting spring piece 510, the offset of the battery pack is avoided, as the puncture thimble 240 continuously descends, the supporting spring piece 510 is deformed and bent inward, at this time the puncture thimble 240 punctures the battery pack, after the puncture is completed, the battery pack adhered to the tip of the puncture thimble 240 can be pushed to disengage by the resetting reaction force of the supporting spring piece 510, the disengagement between the battery pack and the puncture thimble 240 is assisted by the elastic force of the supporting spring piece 510, manual disengagement is not required, the operation is more simple and convenient, and the safety is significantly improved.

[0045] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0046] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, the scope of the present application being defined by the appended claims and their equivalents.

Claims

1. A new energy vehicle battery pack puncture tester that can prevent fire, comprising a puncture device (1), characterized in that: The puncture device (1) includes a mounting frame (110), and the bottom end of the mounting frame (110) is fixedly connected with a fixed base (120); The upper end of the mounting frame (110) is provided with a main pushing assembly (2), and the main pushing assembly (2) includes a pushing groove (210), which is arranged on the upper end of the mounting frame (110); a limiting straight rod (220) is embeddedly connected in the pushing groove (210); a puncture sliding block (230) is embeddedly connected in the pushing groove (210); a puncture needle (240) is fixedly connected to the bottom end of the puncture sliding block (230); and a puncture table top (250) is fixedly connected to the surface of the mounting frame (110); The upper end of the puncture needle (240) is fixedly connected with an isolation protection assembly (3), and the isolation protection assembly (3) includes an upper isolation cover (310), which is fixedly connected to the upper end of the puncture needle (240); a protection cover (330) is connected to the upper end of the mounting frame (110); a first combined cover plate (320) is connected to the front end of the protection cover (330); a slide rod (350) is embeddedly connected in the protection cover (330); a spring rod (360) is embeddedly connected in the protection cover (330) on one side of the slide rod (350); the slide rod (350) and the spring rod (360) are provided in two groups, and the two groups of slide rods (350) and spring rods (360) are located on the two sides of the protection cover (330), respectively; The bottom end of the first combined cover plate (320) is fixedly connected with a recycling assembly (4), and the recycling assembly (4) includes a gas suction port (410), which is fixedly connected to the bottom end of the first combined cover plate (320); an adjusting sliding block (430) is connected to the upper surface of the gas suction port (410) and located on the inner side of the first combined cover plate (320); a longitudinal rod (440) is embeddedly connected in the adjusting sliding block (430); the top end of the longitudinal rod (440) is fixedly connected to the bottom end of the puncture sliding block (230); the back surface of the adjusting sliding block (430) is fixedly connected to the back surface of the first combined cover plate (320); the bottom surface of the adjusting sliding block (430) is connected to the gas suction port (410); the top end of the spring rod (360) is fixedly connected with a backing plate (450), one side of the backing plate (450) is fixedly connected to the upper end of the mounting frame (110), and the backing plate (450) is located at the top end of the protection cover (330); The bottom end of the upper isolation cover (310) is connected with a separation assembly (5), and the separation assembly (5) includes a connecting rod (520), which is connected to the bottom end of the upper isolation cover (310); a supporting spring piece (510) is fixedly connected to the bottom end of the connecting rod (520); and a linkage rod (530) is fixedly connected to the inner side of the supporting spring piece (510).

2. The puncture-resistant tester for a new energy vehicle battery pack capable of preventing fire according to claim 1, characterized in that: The upper end of the limiting straight rod (220) is sleeved with a puncture sliding block (230), the upper end of the puncture sliding block (230) is provided with a thread, and the bottom end of the puncture sliding block (230) is fixedly connected with a motor. The rotation of the limiting straight rod (220) is driven by the motor. When the limiting straight rod (220) rotates, the thread at the upper end pushes the puncture sliding block (230) to rise and fall.

3. The puncture-resistant tester for a new energy vehicle battery pack capable of preventing fire according to claim 1, characterized in that: The bottom end of the gas suction port (410) is fixedly connected with a second combined cover plate (340), the first combined cover plate (320) and the second combined cover plate (340) are embedded in the sliding groove on the side of the protective cover (330) close to the first combined cover plate (320), and the first combined cover plate (320) and the second combined cover plate (340) are connected through the gas suction port (410).

4. The puncture-resistant tester for a new energy vehicle battery pack capable of preventing fire according to claim 1, characterized in that: The inside of the gas suction port (410) is embedded with a gas suction guide pipe (420), and the tail end of the gas suction guide pipe (420) is connected with a suction pump.

5. The puncture-resistant tester for a new energy vehicle battery pack capable of preventing fire according to claim 1, characterized in that: The gas suction port (410) and the gas suction guide pipe (420) are located on one side of the puncture needle (240), the inside of the mounting rack (110) is embedded with a spray pipe (460), and the spray pipe (460) extends through the mounting rack (110) to the inside of the protective cover (330).

6. The puncture-resistant tester for a new energy vehicle battery pack capable of preventing fire according to claim 1, characterized in that: The side of the protective cover (330) close to the mounting rack (110) is fixedly connected with a sealing strip, the protective cover (330) and the mounting rack (110) are sealingly connected, and a group of recesses are formed in the bottom end of the protective cover (330), and the size of the recesses and the puncture table top (250) is matched.

7. The puncture-resistant tester for a new energy vehicle battery pack capable of preventing fire according to claim 1, characterized in that: A group of recesses are formed in the upper end of the puncture table top (250), the puncture table top (250) is embedded with a metal filter screen in the recesses, and the puncture needle (240) and the recesses in the puncture table top (250) are located at the same longitudinal position.

8. The puncture-resistant tester for a new energy vehicle battery pack capable of preventing fire according to claim 1, characterized in that: The supporting elastic sheets (510) are provided with two groups, the two groups of supporting elastic sheets (510) are connected through a linkage rod (530), and the bending part of the supporting elastic sheet (510) is arc-shaped.

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